How Much Does Installing New A/C Cost?

Leave a Comment - 330



Subject: A/C alternative and power costs

The article is good as far as it goes. What many fail to consider is the ongoing cost of running (and maintaining) an A/C unit. I found a good cost calculator -- google for: ac-operating-cost (Sorry, Angie's List won't allow posting a link...)

...and we also found, and have used for a year now, a very nice alternative. This won't work for everyone, particularly if you live in a humid area. We purchased a whole-house Quiet Cool fan. Under $1500 installed. Quieter than our forced-air heating system by far! And ours uses about 400 watts (vs ten times as much for A/C) when running.

We have a well-insulated home. As soon as it's cool outside, we open some windows and turn on the fan. We actually like the breeze in our bedroom so we set the timer for 8 hours but that's not necessary if all you want is a cooler home. VERY effective.

Modris Reinbergs

Subject: This Cost of new AC article ignores the trend

I got rid of our central air system 2 years ago installing Mini-split ductless heat pumps. I have 3 units now with 30 SEER ratings saving 2/3 on my previous electricity bills. This article does not even recognize Mini splits as an option.

Craig Rothlisberger

Subject: A.C.

Is your house big? I just ordered an ac, with a 18 seer. I asked about a heat pump and he told me that not great for a house like mine...about 800 sq. ft.


Subject: Used Affordable Heat and Air - Bryan Cowell and was very happy!

Our A/C unit stopped working. Was too old and had died. I called several experts. Ended up choosing Affordable Heat and Air from Billerica, MA and was extremely happy with their job. Mind you, they were not the lowest cost offer I got, but their service level, expertise and responsiveness won me over. I did not regret it!


Subject: Furnace replacement

My air-conditioner was installed when we built the home 16 years ago and I have a feeling it's going to go soon. Some of my friends have had theirs replaced already and each one has had their furnace replaced also. My furnace works perfectly-I very seldom turn it on. Why would I have to have my furnace replaced? It seems like another gimmick to get more money.


Subject: Furnace replacement.

One of many reasons could be that 16 year old heat exchanger, very hard to inspect, if you have been hiring those $29.95 specials to check out your heating system each year, then you can almost bet no one has has a look at those exchanges, maybe cracked, rust holes, and that is not good. Now, if you choose to keep your furnace, there are other considerations such as those mini relays on the board, they turn on items like an inducer fan, blower motor, gas valve, and maybe more, then there are the limit safety switches, one can fail open and cause your unit to shut down in heat mode, but, if one was to fail in "closed" mode and lets say your blower fan was to also fail. it can cause a very dangerous situation. Anyway, I just thought I come in here and give my opinion, one thing for sure, PLEASE have those heat exchangers checked and a combustion by product check done in your system to make sure your heat system is safe and not sending carbon monoxide into your living areas. Good luck, hopefully you make the right decision with the information we all are providing you in here.


Subject: Furnace function

Your a/c and furnace work together to cool your home. The control board, motor and filtration system in your furnace are needed to make the cool air flow through your home and make you comfortable. If the furnace is working that does not mean it is perfect or couldn't be better. As new tech comes out you can benefit from a more comfortable home, lowered energy costs and the ability to make your a/c last longer because you replace your furnace too. Pay a reputable company to perform a tuneup on both your furnace and a/c and have them evaluate your need and give you info about IAQ, ECM motors and two stage furnaces. You might see the value then.

Universal Air and Heat

Subject: Unsatisfactory A/C work

We had work done at our home by universal air and heat in Florida. The workers first came 3 hours late. Told us it would take 5 or 6 hours instead it took 16 hours, one of the men ( a supervisor ) was not sober. They didn't leave till 5 am. Within 2 hours the A/C stopped working. I made calls to the 24 hr phone number and was told someone would be out in a few hrs but no one showed up. Needless to say it took 10 days to fix our condenser and A/C units. They broke our fence, our screen door , ran over my wife's roses and pomegranate tree. The units ran 24 hrs a day none stop and our 5 ton unit coil froze and started leaking through our drywall. The house was at times 90 degrees . We were told by the manager and two other employees the people that worked on the job would be fired because of not being sober on the job and also asking me to open a bottle of wine at 5 am for the supervisor. After we were told they needed to replace the coil on the 5 ton unit they sent the man that was not sober back to our house to repair the job. This is the same guy that management was going to fire , I felt this is very unprofessional and disrespectful When we first contacted the company our first thing we wanted was our vents brushed and cleaned. The salesman said because I was a military veteran that is was on the house at no cost. It would be sprayed with a microbial killing the mold and also the vents would be cleaned with a brush , this was not done.I spoke with the manager and he said that this would be done but ever since we started having all of these problems being done with our AC units now he is no longer wanting to do this for us this is very unprofessional. We expressed to the manager and the owner that we felt that we should deserve a discount for all of the problems we have had. Between having a broken screen door, a broken fence ,our flowers and pomegranate trees ran over, waiting 10 days for AC units to be fixed , with our air conditioner running 24 hours a day increasing our electric bill and water leaking through our drywall. We are very unsatisfied.


Subject: You need a lawyer !

If what you wrote here is true, I would hire a lawyer, contact the regulatory agency, in most places it is the city, or in many it is the state agency which licenses HVAC contractors. Get you some help, that was really bad from what you have said. I am a contractor myself and tired of people giving our industry a bad name.


Subject: New AC

I got a new AC (2.5 ton) Seer 6 Carrier Infinity, Variable Speed Carrier Furnace, whole house humidifier, whole house air purifier and new 60 gallon gas water heater for about $10,230. (DC Metro area) Out of the 6 quotes I had they had the 2nd best pricing.


Subject: prices

Who would pay these types of prices? Look on ebay.
A nice AC unit with all equipment is around 900-1000 new.

, if you paying 5 k for an AC unit, you are getting hosed.

I just paid 2500 installed for both AC and furnace. It was a basic system. But these prices are nuts.


Subject: Choices

Buying units that way is fine but you're not an expert in the field obviously and an a/c unit isn't like a dishwasher. Matching the units is key and getting the right size equipment is harder than you think. Also, you need the right length and size pipes to run from the indoor unit to the outdoor unit and many other factors come into play. A good, experienced company can be the difference of your equipment lasting 5 years or 20 and operating costs at x or 2x. If you got everything installed and your happy then good for you but that is not normal. Most people who do it that way regret it. You have to pay retail prices because the companies who sell this stuff professionally pay their employees well. There are horror stories in every industry so be wary and spend your research time on finding a good company not a good deal on eBay

June wEISS

Subject: New condenser

My old ac condenser is gone. I have two units to cool a house with three floors which includes a basement. I replaced one a few years back and it is a Goodman.


Subject: Getting more for your air conditioning dollars

I live in Florida, have an older heat pump air conditioner, and have a 1/2 hp shallow water well.
I would appreciate feedback on the pros/cons of injecting/misting filtered well water into the air conditioner's condenser coils. One would assume the water would substantially draw the coil temperature down and make the system more efficient.
Factors: the condenser is over 15 years old; the well water is fairly free of minerals; and the water pump would run only when the a/c compressor runs.


Subject: fair price for a high velocity system

My house is old and small and thus had a high velocity system with the flexible ducts installed in the mid 90s. It has since died. My house is 1000 sq ft and we pay potentially add on to it up to 1600-2000 sq ft. Thus, I was quoted for a 2.5 ton unit with some minor duct repairs. The cheapest quote I got was $9000. This seems extremely expensive. Is this reasonable?

John Connic

Subject: A/C Contractor

We had our installation done by Celco Heating and AC Bridgeport, Connecticut.
From our point of view it seemed they were doing everything they could do to make the experience pleasant for us. With that being the cast everything else was great!!


Subject: Price

Everyone wants to know if they are getting a good price. Price relative to the quality of the installation. If a system costs $7000, is installed properly and works flawlessly through its life expectancy then it is cheaper than one that costs $4000, is constantly breaking down and short lived. One way to tell if you're going to get a good installation is when the installer arrives to do your installation ask to see the inside of his van. If everything is neat and organized then it's likely he will take the time to properly install your HVAC system. If he has to dig to the bottom of a pile on the floor to find his tools then some critical steps of the installation may not be important to him.


Subject: New High Efficiency Furnace and Central Air Install.

Purchased a home last year (2015) with original furnace with no central air, I had North Central Service in Minot do a Carrier High Efficiency furnace with Central air install which was complete with a smart thermostat for just over $6200.00 (money well spent) good deal excellent service. I highly recommend them. You will be hard pressed to find an owner operator as knowledgeable as Mike Hoff the man is a walking heating and cooling database!!!


Subject: Maryland DC metro 10K

I just purchased a trane XR-17 that's dule speed 18 Seer 3ton AC unit with XV-95 furnace viable speed blower at 96% efficiency with a trane humidifier and Honeywell airfilter. I also got a smart thermostat that has WiFi and controls the speed of the blower. I paid 10k for this and was the cheapest quote I got out of 4 others. System is great, but install was a nightmare. Techs had to come out 4 times to fix humidifier and wiring. Even though I had a smart thermostat, they wired the whole thing so the furnace would control everything. I had to research tstat and furnace wiring and go to Internet boards using pictures and feedback from professionals to wire it so it runs at its full potential. I had to learn about dip switches and wiring. Lesson is even if you buy a top-notch system you have to double check the work of the install.


Subject: Putting AC in a 1948 house - Maryland

My husband and I live in a 1948 house with no, central air. We have window units in the bedrooms and one downstairs. We've gotten quotes over the years and the price just goes up and up ($12,000 to $20,000 last year) for forced air systems. My Q: what is the best procedure for installing AC in an older home with very few closets and no, open floor plan? And does is the high price, justified?


Subject: Fitting an older home with A/C

You should investigate a ductless system. Only small pipes need to be run to each room, in which a small air handler is placed. The benefit here is that you will have room by room control as well.

What is your comfort worth?

Ann Sheppard

Subject: Heating and cooling in an older house

A split room heating and cooling hi- wall inverter and outdoor unit is a very practical application in your situation. It is efficient and economical to operate and is more attractive that a window model. The outdoor unit can be situated close to the ground or behind a shrub. Choose a well known brand (many are from Asia) and add to each room as the budget allows. I would start with the bedrooms as a good night's sleep is really important to me.

Terry Mickle

Subject: 5% efficiency loss

That video is WAY understated. You can actually lose up to 100% ( YES that's what I said!) of efficiency. The condensers need cleaned VERY regularly. Minimum once a year. If you have cottonwood trees or other air borne contaminants, maybe more. Also, the 1" pleated filters heavily retard indoor air flow. If you have allergies or want cleaner indoor air, have your dealer install a 5" pleated filter.


Subject: Lennon XP25 Heat Pump 4 ton

I have been quoted $14.8K for A/C unit, Air Handler and the line from A/C to Air Handler. I have a 2900 sq. ft home.


Subject: Lennox XP25 quote

Hi Jk,

That number is very close. I have quotes on the Lennox XC25/XP25 and the American Standard 20 SEER units as well. From what I've heard, the Lennox is more problem prone though, so I think I'm going to use the American Standard unit (the quote for the American Standard unit was about $12k - that's a 3 ton Heat Pump, 18 SEER) but that also includes adapting my old ducting and a bit more work.

Jerry k

Subject: Did it myself...

I needed to install two AC units. I bought a house out of foreclosure and it had been vandalized. Somebody had just chopped off the condensers and carted them away. First, I called the County and verified that they would issue an "owner-builder" permit. Then I cracked the books for a couple weeks, went to a local HVAC store and paid them IIRC $70, took a test and got the EPA license. Bought a big bottle of R22 on Ebay, bought the two condensers ( & one evaporator, and one furnace ) on the Internet, a vacuum pump, vacuum gauge, charging manifold, special brazing rod etc etc.

I figure I spent about a grand in tools & supplies. Chicken feed compared to shop rates for skilled labor in the SF Bay Area. Put it all together, works great! And I feel a small surge of pride whenever cold air comes out of the vents :).


Subject: I want to be like you when I grow up

Good for you Jerry! I have the study book, but heard the test was very difficult--probably much harder than installing that air conditioner.
I'm thinking of purchasing and replacing my condenser by following your course of action.

Michael Hall

Subject: Ductless Split A/C system

I want to have an 18,000 BTU ductless split A/C system installed in my apartment. The unit itself (MitsubishiMSZ-GL-18NA-UI) costs ~ $1500.00.
I got a quote for $4800.00 for everything--unit plus installation. So installation costs are ~$3000. Compressor would be right under the window, so no difficult ducting. This seems very high to me?


Subject: Brand new install, ducts & all

Thank you for your time with my question. We live in an established home and would LOVE to install central AC. Home is a little over 2k square feet. We'd like the 2nd floor and 1st floor covered. Basement is always very cool. So, we need ducts installed as well as the units. Can one of you professionals here give me an idea on $ for a project like this? Bottom line price would be great! I would just like an idea as to what I am looking at before sending it out for quotes.

Again, thank you for your time!


Subject: Rheem Ac

I rent. Old beat up goodman unit got replaced by rheem handler & condenser. Rh1t3617stanja and ra1636aj1na to be exact. Since I'm the tenant I got two quotes from certified companies here in Miami. Both quoted around $3800 each for the job. Long story short landlord sent some butcher to install the new rheem units. This guy even used the same old plenum and patched the old fiber glass with new pieces of boards. House is 1450 sq ft and 3 weeks later my electricity bill is still in the $200's with no decrease, eventhough the butcher tech claimed this new unit to be high efficiency and assured it would lower the bill. So far... False, and my wife and I don't really feel much of a cooling difference from the old beat up, cracked pan, messed up coil goodman unit that was replaced. New handler new condenser, same high electric bill and same cooling. Happy? No, I Would've paid certified companies for the job and not bring this guy to my house, but I'm a tenant and have to deal with whatever garbage they want to put in here.

Lawrence Walton

Subject: Central Air installation

Where the contractors get over and I mean get over is the ducting. If you have central air installed a while ago you will notice it will not be addressed as an important part of the installation. It should be at the top of the list. My contractor offered cleaning and mold control on the old ducting sounded good but amounted to 2 aerosol cans sprayed into the ducts for about $150. So compare cost without ducting and cost with new ducting. Slapping the new unit in is a high profit effort for an HVAC contractor, getting a good job is another thing all together.


Subject: AC Contractor

I hired an AC Contractor they are going to take off my current AC which hardly cools and is rusty and install a new 2 ton Central AC and ensure all air passages are free and also replace the compressor and furnace total being 13900. Is that a good deal? Thank you


Subject: Prices seems excessive.

I don't know where you are located and exactly what work is being performed related to the changeout, but that figure seems excessive.


Subject: Price

It depends on what brand a/c unit is being installed. A trane or carrier unit will be much more expensive than a Goodman. Also it depends on where you live. California will cost more than Mississippi. Finally it also depends on what seer unit is being put in 18 seer is more than a 14 seer. Only you can say if it's worth the cost. Also you need to make sure the system will actually reach the temperature that makes you most comfortable. Just because the old system could, doesn't mean the new one will. Seer rating is about electrical efficiency not how well as system cools


Subject: No no no

It does depend on the market you are in a bit, however that is very very high for any market near me! (I am in Richmond VA)


Subject: AC contractro $13900 quote TOO HIGH

In Texas, I have had quote fro $5500 to $7500 to replace the entire system including ductwork, with a 3 ton gas heat /central air conditioner system in to an 1150 square foot 1 story house.

john z

Subject: yes

I think a little high, only because you already had an existing system ,that only needed replacement.

Judy's plan

Subject: Wow

Wow, that really seems high! Unless you have a huge 2-3 story house and ABQ doesn't need air except June-August


Subject: Good Deal


Before someone answers your question prematurely like the response below several other aspects have to be known. For example the efficiency rating of the furnace, the tonnage and SEER rating of the AC, additional equipment like upgraded filters, etc. So for your own piece of mind do not pay any attention who responds to your question without them knowing all the facts. Of course with any major purchase you should get at least 3 estimates of "like" systems.


Subject: way too high

wait until november when they are hungry for business. you should be able to get it for half that price or less.



Just replaced my 10 year old Carrier due to age. Absolutely love my new 2 stage Daikin, comes with 12 year parts and 2 year labor warranty, everything for $7500. Features wi-fi compatible thermostat, I can change temperature with my iphone. My house is 3500 SF, couldn't live without A/C here in Florida. Very quiet, cools down the house fast when needed, but most of the time I set the temperature @ 75 degrees Fahrenheit. Thanks to Certified Climate Control in Orlando, FL.


Subject: AC quote

I received a quote today for a York 14.5 seer unit and coil. My house is 2400 sq ft not including the basement which is finished. the cost for the unit is $6600 and the coil $1800. I am trying to determine if this is a fair price.


Subject: No

I paid 3500 for my Trane, 2.5 Ton, 14+ SEER. This includes new coil, 10 years warranty on parts and labor. It also included two complimentary visits. I recommend you shop and find the best.


Subject: Fair price

I would suggest you do what should be done before any major purchase: Get a minimum of 3 quotes making sure they are comparing "apples to apples." Good luck


Subject: How much should it cost to replace AC?

I have a 1600 sq ft house in Ohio. Our existing unit is 25 years old and will eventually need to be replaced. We had a quote of $8000 - they wanted to replace the whole system - all new pipes, make a new concrete pad etc.

They said something about the new kind of Freon causing the need to replace all the pipes? Is this true, or a ripoff?

What should it really cost?


Subject: Hvac

That's not true, although it is good to change out your Lineset (copper tubing) just because of the age of the system, being that copper will deteriorate after years of use due to acids that are caused by compressor burnouts and such.. If not changed it would still work but you may need to have it services for refrigerant sooner then you'd like depending on the piping, . If you choose to keep the old piping and are switching from r- 22 refrigerant to 410- A refrigerant all that is needed to die is flush the lines with a certain chemical to clean out old R- 22 residue and oil, then piping can be used with the 410- A refrigerant. Hope this helps.


Subject: Fred,

Generally speaking, newer units will not use the same size refrigerant tubing as your 25-year-old unit. Also generally speaking, it's well-advised to replace the line set, especially if there have been leaks in the evaporator or condenser, and if the compressor has had issues in the past, remnants of compressor burn-out can be in the lines. Honestly, if you're getting a new system, replace it all.


Subject: new pipes

When they referenced replacing your pipes they were referring to the refrigeration lines that run into your house and between your inside and outside unit. The old lines would have carried a refrigerant that is no longer used in the US. The new refrigerant is not compatible with the old and you can't mix the two which is why they'd need to replace your lines.


Subject: Pipe Replacement

If the pipes are in good shape (copper usually lasts forever) they do not need to be replaced, they need to be flushed to use a different refrigerant. If this contractor won't do it, another one will. There could be a trade off at some point if the pipes are very short.

Preston K

Subject: new 5 ton

I'm replacing a 15-year-old 5-ton 12 SEER Carrier unit with a 5-ton 16 SEER unit with a two-stage compressor (Rheem). 10 years parts and labor on compressor, lifetime parts warranty for entire system. I'm in Tarpon Springs FL, and the crew will be here until late tonight, getting it done. Total is $5800 (plus the pizza and coffee I'll be serving the crew). PK

Capt. Kirk

Subject: New 5 ton

Also interested in info on company that supplied this system. Price sounds unbeatable.

brent karfeld

Subject: info on A/C

Please tell me the name of a/c company you have and are they good. Please email me back.


Subject: Rheem

Is lifetime warranty 'standard' on Rheem? Price sounds reasonable.

Philip Simmons

Subject: Cost for 3 Lennox ton ac unit installed-Fair or not?

Lennox 3 ton complete system 16 seer two speed and variable
Speed furnace to help remove humidity, with 10 years part
Total cost $11,998. This is just for the upstairs unit. I'm waiting for the cost of the downstairs unit. Total square footage of the hous is 3300 square feet. Does this sound like a good price. He says the colis inside are rusted and the the unit is leaking freon and the whole system would be better served by replacing all.


Subject: Run the OTHER way!


The "3 years free service" doesn't sound "free" to me. On a brand-new system, warranties are usually at least five years, so I don't think the "3 years free" is worth very much - maybe $300 tops. The $20K figure is someone planning to retire off of your replacement. Run the other way and get at least three quotes. You'll save at least half.

Linda P Morris

Subject: Ridiculously over priced!

Been there done that!Get several quotes.More than twice the price,People lie!!!!They Jack up the price for the trusting uninformed people.Look in services section of your locale newspaper.Not the yellow pages,ask your friends...Good luck !

P LRobinson

Subject: replace central air

We just got a quote to replace our 22 year-old central air conditioner. Is $6350 an acceptable price to pay for an American Standard Silver 13 Central Air conditioner, installed? They say they have to put in a new "pad" and outlet.


Edixon A Giraldo

Subject: Two new AC units

I am shopping around for the replacement of two 12 year old units for my 4000 sqft home. One of the units is 3.5 ton and the other one is 2.5 ton. The quote that I have so far is $22,000 installed for heat pump units using the existing duct system. Is this about right for American Standard AC units for North Texas? It seems a bit pricey. I am still looking around.


Subject: ductless

I just got quoted for a dual ductless mini split Mitsubishi system. It was for a 20 SEER 28k condenser, a 12k and 6k inside unit with installation and permits and all the labor. In other words the whole enchilada. I know that the equipment alone goes for 3k to tops 4k. What I can't wrap my head around is the labor charge of 5-6 thousand dollars to complete a simple hook up. My electric panel is 200 with room for the ac so no need to upgrade. There are no long runs for either electric or the plumbing itself in fact the two rooms that I want to cool are above and below one another. How can cooling two rooms cost 10,000.00 dollars!? For five thousand more I could get a central ac system installed for the entire house! To me the price points on labor are completely out of balance with reality. I should not need to pay as much as it costs to become an electrician (Not that I don't respect and acknowledge the skill and trade) to have two small rooms of my house cooled. I was thinking a more appropriate price would be 5-6k. Have I lost my mind or does 10k seem nuts for this?


Subject: Priced for installation

You are out of line in your thinking. When a contractor touches your home and pulls a permit they are liable for whatever they touch for a specified period. if they install an ac and do electrical , plumbing and wood work they are on the hook liability wise. Also overhead like rent, insurance, workmans comp, wages, taxes, benefits, advertising and operating costs, as well as investment in tools training, and finally profitability as well as leaving something in the pit for the rainy days when no work comes in. Running s business is expensive. Being an employee is easy and most never think of all thr work thst goes i to becoming and maintsinjng professionalism.


Subject: Lennox AC and Furnace

I got a quote of 16.2k for:
Lennox XC16-048 4TON Air Conditioner 16SEER
Lennox EL180UH090XE48B 80% Gas Furnace, Honeywell Vision PRO6000 Thermostat, R8 Ductwork, and all necessary permits.

in CA. Is this a good deal or too high? House is about 1700 sq ft.


Subject: Lennox AC


Believe it or not that is a good price for a reputable company.

I am the operations manager at a plumbing company and when I started looking at the HVAC invoices I was shocked.... Until I looked at the over head, liability, training etc of HVAC. Sure, there are cheap companies but you get what you pay for. Namely, a "tail light warranty" and someone who has no idea what they are doing.

rich roldan

Subject: A.c

I live in California. 1750 sq. Ft home. 4 ton Bryant unit and condencer.took out r22 and went to 410 refrigerant .installed and hauled..$3500


Subject: A/C Prices

Dude !!! that is too expensive for 1750 sq ft house and that too in should be able to get an AC between 4-6K installed.


Subject: lol

16,000 for a 1700 sq foot home? Grab your ankles, chief. That is the most ludicrous quote that I have ever witnessed for any home installation of any product.


Subject: Just spent $9,566.00 on

Just spent $9,566.00 on replacing entire air system (both gas heat and cooling) to brand new Carrier unit that uses R-410A. Can no longer use R-12, so entire system had to be replaced. Put my R-12 compressor (which is only 7 years old) in storage in case I need it for another property. I also got a 10 year warranty parts and labor. So I better not spend a dime for 10 years. Cost is outrageous. I blame the Democrat Party for all this ridiculous EPA regulation.


Subject: EPA

Dude, grow up. The EPA was started by Nixon and the GOP.....


Subject: Perhaps you don't understand you are not alone on the planet

I would not blame the Democratic party for pushing the elimination of chemicals that can destroy ozone layers. W eBOTH inhabit this planet and like you I am protected from excess UV by the ozone layer. I am sure that skin cancer would not be your prefered path to early death, nor mine. So please, blame personal and societal responsibility on why we pay more for new refrigerants.....and thank the Democratic party for actually caring about our health.


Subject: Installing a/c condenser

I found a whse outlet on line where I can buy a 3 ton 14 or 16 seer unit (rheem or York) for under $2000 coil for less than 800
House already ducted just needs unit. Brand new 1400 sq ft home. Would just need install & permit. Is there some problem doing it this way? Should come out cheaper than the 5800 quote rcvd for 14 seer 3 ton York unit. What wld be a fair
Install price if I already have the equipment?


Subject: Almost nobody will touch a

Almost nobody will touch a system you sourced yourself. Several issues here. At a basic level, your contractor installs a system he is familiar with, trained on, and has a relationship with the factory should any issues arise.

Your idea of buying equipment and paying strictly labor is similar to carrying groceries into a restaurant and only paying the rate for the chef. It just doesn't work that way.

As you have seen, there is an enormous markup for HVAC equipment. Retail pricing of well known highly advertised brands will be 4-5 times the cost of manufacturing. The manufacturer will make 70-100% profit, the distributor will add in another 50% and then the contractor will double the cost to you. The cost structure of the HVAC business is obscene largely because there are just a few actual manufacturers who are very comfortable with this arrangement and it ensures everyone is making good money on products that are essentials.

What can you do? Shop around. For the most part, there is no real difference in equipment -- maybe one is slightly quieter than another or has a more attractive case but the parts are all sourced from just a few suppliers regardless of the brand on the unit. There are contractors who make sure they aren't overpaying at the distributor level and then run a lean business to keep costs low.

Another thing -- these warranties and such are worthless. Sure the parts may be covered but you will pay the labor and I promise you, in 7 years the same guy selling you a 15 or 20 year system will tell you to just replace the whole system again. Really.

Lastly, go easy on the electronics. A basic system will be far more reliable in the long run and, if it needs a part like a capacitor, it will be a $5 part that you will only pay $150 dollars for installed. The newest equipment is definitely cool, very pretty, and is indeed more cost effective. But, you will most likely be replacing some hideously expensive and proprietary parts every 5 years or so to the tune of $1000 service calls. Ask them about about the replacement costs of the ECM fan in the fancy furnace or the condenser motor in the multi-stage 18 SEER system. You will lose every penny of energy savings.

Stick to a 14 SEER system. Shop around. Buy the basic systems. You'll be better off.

rich roldan

Subject: Ac

I paid $3500 parts and install plus take old unit. R22 to 410 4ton Bryant. Ca.

Joe Ross

Subject: Price range for A/C replacement

We have a quote for $5700 for a 5 ton Carrier 24acc6 model to replace an existing unit. Reading this thread, that seems like a fairly good deal. We have 5k square foot house and this is the unit to handle the first two floors. Appreciate feedback. I'm in Northern Virginia if there are contractors reading this and want to make me an offer.

Virginia Cason

Subject: 2 1/2 ton

Quoted $5,333.00 for A.C. plus upgrades to electric and things out of code as my condo was built in 1974. Does this seem right? Help!


Subject: Is this pricing faire

14 seer, Carrier, 4 ton
for a 2200 sq ft home in central FL.
Compressor, therm , air handler 5320.00
Pls advise


Subject: ck local tax rebate

usually tax rebates start at 15 seer in FL. might cut down the cost - especially if 15 seer 3 TON will work for your home.


Subject: Unit replacement

Unit Costs
I just went through the grind with a corporate Dealer installer Which I had never heard of where the company is traded on wall street.. Bigger ain't Better. The job consisted of upgrading a 2.5 ton Lennox split system to a 3 ton signature two stage with a S30 myiComfort thermostat. $13478. no duct work. The technician did give me $1000 off. Before I signed the contract I researched coupons, $1000 rebate from Lennox, $1000 rebate from the installer.$100 rebate from Lennox on the thermostat, The salesman never informed me. Also through research I get a $500 tax credit EEF rating.
Now the invoicing- the invoice had listings of materials NEVER only one price $13478 go figure $7000 is the market price for the unit. Now the hook any repairs will be.based on units anything they touch will have a $ sign and Hourly Cost

Ophelia Chapple

Subject: 14 seer r to proform like a 15 seer

I purchase a Trane 15 seer 4 ton condenser and coil . My neighbor pointed out that that's what he has but our units look differect I called Trane customer service (Mo.)gave the serial off the outside and was told it was in fact a 14 seer unit. I called the company who sold to me and install to be told that the 14 seer and the inside coil will make the unit perform on a 15 seer doesn't sound right ...I need some advice

Cecil Miller

Subject: 14 seer to perform like a 15 seer

You can look up the rating in the ahri directory. You'll need the manufacturer , the model number of the out door unit and the evaporator coil that was installed. There are some match ups that will give you the rating.

Rich M

Subject: A/C heat pump

getting a new Trane A/C heat pump 4 ton installed tomorrow for $5500 interest free special till 2021 but they say it don't include the duct work does it normally come standard with a new system ?


Subject: 16 seer 2 ton A/C for $6,400 in NC

I got a quote for a 16 seer 2 ton Lennox A/C unit for $6,400 in North Carolina. Is that too much, or is that about right? I have used the company in the past and have been happy with their work.


Subject: Lennox

They are nothing but problems. Read the reviews on them. Mine quit after 4 years.


Subject: A/C Cost

I was just quoted $17,000 for a 20 SEER 4 ton Broan HVAC replacement. No duct work or electrical needed. we need 2 1 for each floor so our quote was $34,000 trying to figure out if it is to much or not. We are in California


Subject: Confused

I have a 12 year old carrier 2 ton unit for a 1200 sq ft home in middle Tennessee. Got 3 quotes ranging from $3,900 - $5,400. Does it really make that much difference in who or how a new unit is installed for this huge price difference? The high price does have a 10 year parts and labor warranty while the other 2 give the 10 yr parts and 1 year labor. I'm confused and scared to maje the wrong choice!


Subject: Heat Pump replacement

We have a 1987 Sq Ft ranch home, had a 4 ton , 13 seer Carrier heat pump on the roof, coils were leaking so it had to be replaced ... Got an American Standard 4 ton, 16 seer variable speed unit, additional 14 inch return, installed, crane, electrical, digital thermostat, and increased original 14 inch return with a 16 inch return and new duct , complete job was $6440.00 ...


Subject: central AC

Have a 23 yr old Trane ac , We have a BGE services plan to check it every year, Was told we had a leak in the coil, $900.00 to fix or get new system for $6800.00. O ' what to do.

Robert Rose

Subject: TO replace or not to replace

I am in the exact situation.....had a leak almost 365 days ago....paid a guy $450 to solder the leak in the line and put several pounds of R-22 into the system (R-22 is hard to come by and very expensive). Yesterday the coil froze over completely (no R-22)!!! I am not doing it again. We are biting the bullet and getting a new unit..........

that's my advice----you got your monies worth from your unit.

Good luck


Subject: Size and price

I have a 1000 sq. ft. Home. What size central air should I get and how much would it cost to install?

Do I need to hire an electrician to run the wire or is that included in price?

Diane Poole

Subject: air condition price

We had a Trane air conditioner that died suddenly. Apparently it had been leaking coolant as most copper pipes are now green and it has no coolant. Old company replaced our unit with this, knowing it was out-dated and about to become obsolete. It did work for nearly ten years. We paid a little over $4000 for that and we are getting a new HCE 424 from Bryant tomorrow. The guy told me it would be $7800 which seems high to me. Paperwork says $7900. Have prices changed that much? It seems really high. House is only about 1100 sq feet. We have a full basement but no vents down there. We're not getting any new duct work. Should we cancel and shop around?


Subject: Replacement AC

I have a 1200 square fioot. 1 story house. I received 2 quotes. Quote 1- $4500 for a carrier 2 ton, 14 seer comfort series
Quote 2- $2600 for a carrier 2 1/2 ton, 14 seer.
Both quotes are from reputable havoc companies, one is larger, but both have been in business for over $20 years. Quotes include pad, thermostat and condenser rack. Why are they so different

Kevin D.

Subject: One possibility is that the

One possibility is that the more expensive estimate is from a larger business. Often providers in the same sector can vary widely with their rates based on whether they are a smaller operation or a larger entity.

Adam Deets

Subject: TempStar 5 Ton 18 Seer w/heat pump

I don't know much about air conditioners and was looking for a little help. My compressor went out on my 14 seer 5 ton Trane AC unit. I've got two quotes for replacement $8,400 for another Trane 16 seer with ac/heat pump and $6,200 for a TempStar 5 ton 18 seer w/heat pump and he kept talking about how quiet it is. The $6,200 seems better obviously, but I'm not familiar with Tempstar and don't know if either quote is good. My house is 2800 sq feet with really high ceilings. Thanks for your help!


Subject: 5 ton???!!

5 ton is WAAAAYYYY to large. Did the contractors bother to do a load calc?

Donna White

Subject: Replacing floor furnace & window unit air with central

I live in a 768 square foot home and have a floor furnace & window air condition. I want to get central installed, but don't know if anyone will finance me, as I just finished going through bankruptcy! My floor furnace is very was built in the 40's. Any idea of what it should cost? Any comments would really be appreciated....Thank you!

Candie O'Neil

Subject: Hiring AC/Furance

I live in Loudoun County, VA and bought my house year 2000. I live in 3 Floors townhouse. It's 1270 sq ft. I need to buy whole new unit. My Byrant quit on me. Can't read the label on outside condenser (the sun fade it). What size ton do I need ? I'm looking for a quite unit. The one I had I could hear it running. Does Rheem run quite ? What brand do you recommend ? And what is the price range ?
Than you


Subject: HVAC Size

Roughly, every 500 sq. Ft equals 1 ton of A/C, in your case with 1270 should be around 2.5 ton system, however consider few things such as how many windows your condo has, what grade of insulation overall is in your attic, you can push it maybe up to 3 tons, but NO higher than that.


Subject: Very High Price

I was quoted $17,000 for my 1400 square foot home. This included adding new ducting where none existed before and a 24,000 BTU 14 SEER unit. Does this seem right to anyone? Seems a bit high to me, I live in Delaware if that helps.


Subject: AC unit

Hi Brian

I live in Delaware too and wondered how you made out on ac? What company did you go with? Are you happy? Etc..





Subject: split system

Maybe consider a mini split system. Google them. They use a compressor and the cooling unit mounts on the upper wall or near floor. These have no ducting. They can have multiple zones.


Subject: $17,000 for my 1400 square foot home

the duct work is the big unknown regarding time and materials and therefore price. I live in Florida, and had a house at the NJ shore. I was quoted $5000 for a reinstallation (everything was there and working - just needed it updated). this was for a SEER 14, 2800 square foot, I think it was 4 or 4.5 tons. But the duct work could take a week to install - depending upon the layout of the home and accessibility. But, I think I would ask for one or two more quotes.


Subject: unfinished attic

my current unit is unable to cool and heat my upstairs unfinished area. It's about 600 sq ft. I can feel the heat and air blowing but it's not strong enough to do the job. It keeps my unit constantly running. My it best to get a new unit maybe 4 tons or get a smaller unit to heat and cool both up and downstairs? My downstairs is about 1500 sq feet. What is least expensive?

Roger Palmer

Subject: yes

i apid 4 k for a brand new 3.5 ton unit in florida. no duct work replaced jus air handler and condenser.

Keith Roberts

Subject: AC Unit 3.5 tons South Florida

Ok First what Brand? I just had a 21 seer 4 ton Carrier infinity two-stage compressor top of the line with an FE4 air handler attic install in Broward, removed old AC unit
10 years parts 5 years Labor I paid 7600
The Cost on HVAC
4 ton Carrier Infinity 24ANB1 air conditioner: $3,369
Carrier Infinity Wi-Fi based Touch Control Thermostat SYSTXCCITC01-A $600.00
4 ton Carrier Infinity FE5 air handler: $1,848 = 5,820 and change.
It depends on what Seer, Tonnage.. Install location.. Air handler.Thermostat etc., look up your model on the web
They gave me a really good price almost ridiculous, but I received a couple of bids from other Installers both bids were close to 10,000, I am also a retired builder, you have to do your home work Google model and will give you the prices figure 1500, and 2500 for install plus full charge of Freon, using old lines, your price seems high however you need to know what your buying location warranty labor etc. You get what you pay for, hope that helps


Subject: is this a good price?

Hi! the installer is coming tomorrow to sign papers and before i do i was wondering if anybody can tell me if this is a good price? 2 ton train ac with thermostat and installation for for $3000.

Sally Read

Subject: AC Price

I just received an estimate for a Carrier Performance 17 (2 stage compressor & variable speed furnace for $8,455. We live in Florida in a house of 1150 sq feet but are adding on 350 ft. Price includes adding new duct work to addition. Is this price reasonable?

Shane Kennelly

Subject: Is the cost worth it?

I was quoted yesterday on a complete replacement of 2 A/C units (one upstairs, one downstairs) on a 2200 sqft house in Memphis, TN. A 3-ton Carrier for the upstairs ($6828) and a 2/5-ton Carrier in the downstairs ($6621). $13,449 total. Thoughts?

Pam Salalac

Subject: New A/C unit

A contractor quoted us on a Lenox, 2 ton, 14 SEER, single stage cooling, single stage heating, standard thermostat, standard airflow, and a 10 year parts warranty for $6900.00. It also includes air handler. Is the price fair?

By the way what is a air handler?

Thank you for your help.


Subject: ac cost

Hi Pam,
I never respond to these forums, but I saw your post and just had to reach out to you. I think you are getting taken advantage of! Get other estimates. I am in Florida. I get better pricing that most because I have several properties to maintain. With that in mind...I was just quoted a new 4 ton Goodman Heat-pump, and Air Handler for $3,800. This price includes necessary permits which will be needed to sell the house later. I have found Goodman to be generic; but good and reliable. Goodmans are easy to have worked on by a larger pool of techs later on. This will save you money in the future as you won't be limited to a Lennox-Carrier, etc., tech.
Please shop some more!!! Have a great and prosperous day! Sincerely, Anna :)


Subject: re: New A/C unit

I am putting in a new Lennox 3 ton 20 seer unit. Cost with a s30 digital thermostat and dampers for 2 zones is about 10,500. It's giving me heartburn but I looked around and didn't want to put in another $5k loud inefficient AC.


Subject: new hvac system

we live in a small 850 sq/ft house. We currently do not have an ac system. We recently received quotes for an installation of a hvca and were quoted at $9500 and $8700. This seems rather expensive considering the size of our house. What should we expect to pay?

Kevin stepisnik

Subject: Way to much

For a house as small as yours. You might want to install a ductless heat pump. You get tax credits both state and federal. Also most utilities offer rebates because they are so crazy efficient. A good system should be around $4500 fully installed. A lower SEER unit should cost $2700.


Subject: Yea I would say that's a bit

Yea I would say that's a bit on the high end. I have a 2800 sq/ft home and received 2 different quotes. One for $9,000 and the other $6,000. Now, I already have an A/C unit and they are just exchanging one for another, but I don't see how even a new installation would run you $8700-&9500. Maybe get a few quotes from other companies.

eric gruber

Subject: is the price I'm paying fair

I am replacing my 20 year old unit as was quoted $6175 for the following: 3 ton 15.75 seer American Standard unit, 3 returns in our bedrooms that our opposite of the location of the unit (with appropriate ducts), fuming the ducts for they are fiberglass, moving the unit from the attic into the garage, and installing a UV light in the unit as well.


Subject: ac quote

Sears sales person came to my house in El Paso, TX quoted me $11,900 for a split system install for a carrier brand 58dla070 furnace condenser unit 24abc642A003 and evaporator coil cnpvp4217ala single family with 1360 ft using to existing electrical and re use of existing duct system, is this to much, I think so after reading all the other comments.

stanley goldstein

Subject: HVAC

I would not buy anything from Sears. In my opinion, they are no longer the company they used to be and their products fail much too soon. My Kenmore refrigerator lasted about 2 years. I had no trouble from my Kenmore appliances installed in my new house back in the 80's, however, these days, it seems they get manufacturing done overseas. The goods are just not up to American standards. Sears should have known better than to be a sell out. Of course, this is just my opinion and I may be entirely, wrong.


Subject: Quote

Yes that is astronomically high. I'd get on a plane to El Paso and gladly do it for half that amount. I'm a small contractor. My advice is to call around to find a smaller licensed contractor. The big guys swing for the fences every time and if you pay 12k for a system change out that will be a grand slam...

Ron Ford

Subject: How much for ground up system?

I have a 1000 Sq Ft split level home in Northeast Ohio. I am currently all electric and run baseboard heat and window unit A/C. How much would it be to install a new efficient HVAC system(ballpark)?


Subject: Price too High on 16 SEER trane?

***I was quoted $6594 for this equipment:
Trane XR16 3 ton high efficiency air conditioner, 3 ton all aluminum cooling coil, and TranebXC80 80000 btu variable speed gas furnace with Trane XL850 WIFI and Z-WAVE enabled full color LCD
touchscreen programmable thermostat and control, add manual dampers on attic system
***PLUS another
$300 for secondary drain pan, emergency float switch, wet switch flood detector, double in line switch.
$350 to relocate thermostat to different area of upstairs
$125 for new return duct and grill
$150 replace return plenum
$250 Aprilair 2410 Media Air Cleaner

**** TOTAL is $7469. We live in suburban Atlanta. The unit is for second floor, some vaulted ceilings, probably around 1800 square feet.
I feel like this is high. Any thoughts are appreciated!!

Travis Smith

Subject: Price is fair

The price for this certainly is fair the XC80 is a great furnace and the XR16 is a good air conditioner. I assume this is replacing an existing system. If its for installing a new system where no AC was before then its a really good price. But that furnace is normally a $3-$4,000 furnace depending on install and market and that AC is a $5,000 AC so that seems like it should be closer to $9,000 in my market.


Subject: new hvac quote

We live in south Georgia. We have 2 hvac units for a 2200 sq.ft , since house built in 2001. Cathedral ceilings, lots of windows. The smaller unit, 1 1/2 ton replaced 2011, used for the bonus room upstairs. The larger unit, 4 ton, 15 seer, just having problems this year. I noticed the humidity levels, feeling, smelling dampness in house this summer. Tested the humidity levels and it was ranging from 55-70! Got a dehumidifier last month. During our service call, service noticed the airhandler was not heating, just blowing air. Discovered the compressor breaker had been tripped. Compressor heater casing wires were fried. Not sure when or how, believe it was a power surge, sometime. Was quoted $7100 for complete system, airhandler, compressor, new thermostat for a Bryant, 151/2 seer, 13 1/2 ton. Comments?

Travis Smith

Subject: Oversized System

You have 5.5 tons of AC for a 2,200 sq foot home? It sounds like your cooling system is oversized. When a system is oversized it will short cycle and turn on and off, this does not allow it to dehumidify. If the house was built in 2001, it shouldn't be move than a 3 or 4 ton for the whole home, but a full Manual J load calculation needs to be performed to be sure of the sizing. Even though I am "guessing" based on age and sq footage its just a start. All of your symptoms say oversized. Bad compressor on a newer unit(guessing newer since 15 seer hasn't been around that long) and bad dehumidification and 5.5 tons for 2,200 sq feet. I would be amazed if your house needed more than 4 tons total which would allow longer run times, less breakdowns, better humidity and lower energy bills.

You don't buy a 18 wheeler to haul kids to school or buy groceries to why buy an 18 wheeler to cool your home. More/bigger is not better.

Adrian Brailovski

Subject: Replacing a 26 years old system AC/Heater

The old system, Bryant was 2.5 Ton and 60 000 BTU
The new system is a Lennox SLP98 V and I had in mind a XC20 3.5 Ton
I found out that the XC20 is comming only in 3 , 4 , and 5 Ton
I have a 2500 square feet with 2 levels. Out of 4 proposals , only one of the dealers said he will not recomend a 4 Ton unit but he asure me a # ton will do the job.
Can someone help me in Taking a decision ?

HVAC Contractor

Subject: The tonnage is directly based

The tonnage is directly based on BTU's, each ton is 12,000 BTU's so a 2.5 ton is 30,000 BTU's, half of what you said here. Unless you're running heat loads on your own house you're in no position to be guessing what tonnage you want, this little article here is right in that it's important to have a properly sized unit, bigger is not always better in the HVAC industry. It's also important to note that changing the size of the unit requires modifications to ductwork as well which can get quite costly, with each ton generally requiring 400 cfm it's a very bad idea to just slap a larger/smaller unit in at will (although most contractors won't object since half the time they won't make the sale otherwise). Ask your contractor to a duct analysis and heat load and have him show you the results, the math won't lie and going any other route wastes loads of money in the long run.


Subject: replacing inddor units

I recently received a quote to replace my attic and outside units. to Rheem 2 ton 14 seer units with duct work cleaning, repairing some seems on ducts and 2 digital thermostats for 11,927 for both. I live in middle tn area and my home is about 1900 sq feet. does this sound accurate.


Subject: Replacing Indoor Unit Response

We are a Mechanical / HVAC/R company in Southern California and I would highly suggest you obtain at least one additional quote - maybe two... first of all you need to have a Manual J heat load analysis to know the correct size condenser unit... a 2 Ton system for a 1,900 SF home seems a little small but as another contractor properly stated the math does not lie...

Also, the $11,927 cost for the work being recommended seems excessively high even if it was a top of the line MFG. and system (which I doubt) and even for here in Newport Beach, CA... Nationally the Average Cost of installing an A/C system is about half the cost you were quoted... good luck!!!!

sam gendi

Subject: a/c

I have a 2 story home. Each floor is 1250 sq ft. There are 2 exterior central air units, one for each floor. Currently one is not working. What size units do you suggest for proper cooling? Thank you.

Andrew Stenholm

Subject: Tons?

You can look at the Model # on the unit (outside). i.e. 4A6H6036H1

Note the 36 in this Model #... if you divide by 12... =3, which is a three ton....

Usually you will replace a unit with the same size unit, your preferred brand.

Same size replacement is dependent upon the assumption that your unit was working well, and a new, identical, system will meet your needs. (proper air flow, code compliance, etc.)

Find a contractor you trust, this is more important than popularity.....

24- 2 ton
30- 2.5 ton
36- 3 ton
42- 3.5 ton

Victor rocha

Subject: New everything

We just recently got a house in west texas. A lot of homes down here run on swamp coolers for air. I would like to install a central air system. Which will require installation of everything from ducts to breakers to wiring. Has anyone else had to go through this? If so what was your cost?


Subject: New Everything

If your house is built on slab, forget about it. You would have to tear open all your walls to run the ducts. Ditto for a finished basement, where you would have to tear up the ceiling, and likely severely reduce headroom. Installing ducts after the fact really only works if you have a tall enough crawlspace. Get ductless mini splits instead.

Sharol Lewis

Subject: new air condition unit

I live in California in the Inland area, my home is 2200 sq ft,and I have a home warranty service and they are replacing my air condition unit with a 5 ton, 14 seer lennox. my out of pocket expense is 1190.00 I have to pay for the permit, the title among other things. What I don't understand is the title price of $525.00. Is that a good price? I'm not sure what that is for.

Melinda Jones

Subject: Air conditioning and heating

We are buying a home in Maryland which currently does not have air conditioning and has an oil heating system. We want to instal central air and heat. The house is currently 1500+ square feet but we do plan to add on 500+ square feet within the next couple of years. Any suggestions on a unit or units and costs?


Subject: Replace A/C Unit

I have received a quote to replace our central air unit. $5,500 for an Amana. Contractor recommended that we do not need a heat pump. Unit has electric heating strip. 4 ton 16 SEER. Fairly easy installation with existing duct work. Replacing a 20 year old system. Southwest Fl.


Subject: SW FL

I too have received a quote for my 1,600-1,700 sq ft home to replace a 20 yr old system inside and out with a Trane 3.5 ton 15 SEER for about $5,250. Existing duct work. I didn't do much leg work but it seems this is within the correct ballpark from what I have read. Do you think this is high or is it a decent price?


Subject: Total Replacement

I live in Southern Cal. and am about to replace my old dual system with a new one. I was quoted $14,000. which would replace my old systems with 1 Trane 3 ton, 16 Seer (XR16), and 1 Trane 2.5 ton , 16Seer (XR16) and 2 Trane 60,000 BTU furnaces (XV80) along with 2 programmable thermostats. Does this price seem about right or am I overpaying?

Van Carrin

Subject: Price

It does not seem that bad to me for Calafornia. I am replacing a 2 ton TRANE unit for $4300 here in Alabama.

Tom G

Subject: New AC or fix the old

Hello all,

I have an 7 year old Trane and it occasionally pops the breaker, almost once a day. I had a technician look at it today and he said every thing is fine with the AC unit except the lines that go to the air handler. When I had this unit replaced they did not replace the tubing and he said the diameter of the old tubing was not big enough for the unit causing the compressor to take too many amps to start up. His recommendation was to replace the tubing but suggested I replace the entire system to have one that is more efficient. My unit is a 13 Seer.

Thank you in advance to the experts that come on here and answer questions.


Tom G

Guy T.

Subject: 7 year old trane replacement

Tom, I have been in the business for over 30 yrs and I will tell you that your that your a/c unit is not making your breaker trip. You have a problem with your breaker,they do get weak over time,or your panel may have a problem with the bar connection causing the breaker to not make a good connection which causes the breaker to heat up and trip. as for the over amping at start up all unit do so, but it can be reduced by adding a start kit. As for the line set you need a 3/4 -3/8 for up to 3 1/2 ton , and 7/8- 3/8 or bigger for larger tonnage units. if the line set is too small or too large it will cause an efficiency problem, it will go down, too large may not allow the oil to flow properly and you will lose a compressor. YOU DO NO NEED TO REPLACE THIS UNIT , maybe replace line set and add a start kit and get an electrician to check your breaker and panel. If you have had a good relationship with your a/c company than ask them to not send this tech back to your house as he doesn't know what your unit may need to fix your problem.


Subject: air conditioning problems

We live in Florida. The house is about 2400 sqf. We have a 5 year old Rheem 5 ton unit that freezes up (at least 10 times in two years) and leaves us without AC until someone comes out to fix ($ 75. - $ 125. each time). No reason why the unit freezes and having someone come fix it can take 1-3 days but meanwhile forces us to live in the heat. The house cools down sometimes but rarely seems to get to the desired temperature and shuts down (it runs all the time). Our electric bills run $ 320. - $ 400 per month (much higher than normal with a system working efficiently). AC in Florida is really important and living in a house that is hotter than normal is tough. The settings appear to be correct – then why does is freeze?


Subject: freezing

check your inside coil it may be stopped up and causing it to freeze back starting at the evap coil to your outside unit, you will see less air flow and unit will run forever


Subject: a censor getting to hot

I had the same issue out of our train system and had the repair man out and he (after a few trips out) discovered that a wire from one of the censors was getting hot and shutting system down. He replaced the censor and wire and we have had absolutely no issues with system since.

Richard Anglin

Subject: Freon

You have a small leak. When the repairman comes, he most likely just charges it back up. If there is any itemization on your receipt, you should see a see a charge for Freon, unless they are just charging you for a service call. You can spot the leak by inspecting the unit and looking for an oily, usually dirty area. You can then pinpoint the leak by spraying dish water on it just like a tire. The people you have had "repairing" it know this. Because of federal regulations, your system will have to be evacuated with special equipment for which you will be overcharged. If you can braze copper and know how to get your hands on some Freon, buying the gauges, a vacuum pump, and watching some youtube videos will be cheaper.


Subject: We had the same problem. If

We had the same problem. If you have a heat pump they said it is normal it gets condescension on it and it freezes up when it gets really cold but then your emergence heat turns on. usually it will say something like E heat on your thermostat.

Jim Wenzel

Subject: Purchasedo new A/C

I recently purchased a new 18.5 SEER 4 Ton Carrier for my 2300 sg. ft. Home for 11.3k. Is that overpriced for dual efficiency system.?


Subject: Warranty!?

Am I the only one who HATES their home warranty company? I was quoted "non-covered" expenses of $1,200 in addition to the cost of a 3-ton Lenox compressor and new indoor coil. The motor and blower are not involved, as far as I can tell. I have no idea what that equipment costs, but the non-covered stuff is disposal and reclamation($260), pipe modification ($300), Duct modification-not duct replacement ($356), Pad Pump Up?? ($126) and Electrical modifications ($126). The warranty co offered me a flat $585 to just do it all myself, but from the sounds of other posts that might be foolish. Do I take this deal?


Subject: Wide price range

So I need to replace my AC unit inside and out. I have had 4 quotes with a 5th coming tomorrow. Why do the prices have such range.
1st 3890 Rheem 15 SEER 3 ton 10yr part, 2 labor
2nd 4000 Amana 15 Seer 3 ton 10yr part 1 labor
3rd 6900 1hour Brand 14 Seer 10yr part, 5yr lemon, 2yr 100% satisfaction, 3 degree total comfort.
4th 9550 Carrier 15 SEER 10yr part, 5yr lemon, 1yr 100% satisfaction, 1 degree total comfort.

It really is a wide spread and confusing. I know everyone says that installation is key to the systems lasting longer with less issues. Do AC installers skill vary this widely to justify this kind of range?

michael torres

Subject: to Stevin

the brand of the unit is to be a factor in price when buying a unit also when you buy the's a lot cheaper if you wait when its off season to buy our unit. SKILL AND knowledge IS A BIG FACTOR ! ask for past job and see how they work.
if you look at there truck and see no marking or license numbers that a big red flag. them are the verified ?
are they a big company or a small mom and pop shop overhead is also a factor. bigger company will charge more but they will be available more then the mom and pop shops. (Make sure they get the right size units) once the installer have finished there job there has to be a check by a STATE inspector to make sure all is done to code this is the most important part!
check all these boxes and you have your best chances of getting a good install. also go with the main brands
CARRIER TRANE RHEEM those brands have off brands too which are also good but with less Quality.
^Payne ^american standard TRANE and american standard come off the same Assembly line FYI : )

Jenn H.

Subject: Just got a new a/c

I just got a new Goodman 4ton, 16 seer, variable speed fan put in last week for just under $5,000 in central FL. I shopped and got 18 different quotes, many just over the phone since I knew what I needed. I narrowed it to 2 companies and went on the better reputation of one company. Little higher price but great workers and excellent system. Goodman and rheem/ruud seem to have the best reputations for solid built systems but quality install is key to efficiency. Standard warranty is 10yr part, 2 yr service. For longer warranty they are putting about $400 into the cost because they buy a separate plan.


Subject: Solar ready Lennox

Hi I am on the fence with getting an AC installed with a company through Costco. I already have flex ducts, vents and a newer gas Rheem furnace. I was given a quote for a Lennox 17 seer solar ready 4 ton unit with install for $9,000 after discounts. An AC has not been installed on this 1960s home. I have leased this a good price and would it be to my benefit that it ties into my leased solar panels? Thx




Tim McKenna

Subject: You taught refrigerating science?!?!?!

I feel bad for any of your students. 400 Sq ft per ton? Where do you live? On the sun? A manual-j will tell you what is needed. The average Sq ft per ton is 500-800 Sq ft. Depending on where you live. 800 Sq ft per ton for the northern states and around 600 Sq ft per ton for the southern states. You WANT your ac to run. For it to turn on and off a many times per hour is very inefficient and will NOT take the humidity out. Startup amps are 5x what it takes to run. You need to check your facts before you call anyone incompetent and look in the mirror first. 2.5 ton unit is plenty of ac for 1600 Sq ft depending on the home and location. Here in mn a brand new home will take a 1.5 ton of it was built correctly.

JoEllen Boggess

Subject: Include duct work with total replacement?

We have a 32 year old house and are having our 17 year old system replaced. Should we include the duct work in this replacement? We have had a problem with mold at the trunk in the past. Not sure if it's a problem now. Please advise asap. We are having it replaced this week.


Subject: Replace Ducting

Code & Regulations may dictate you probably need to replace duct-work under Title 24. Newer materials used for fire and other specifications are mandated in some counties.

Missy Lynn

Subject: New AC Replacement

I just received a quote today of $12,000 to replace the entire unit in my house including duct work. It's quoted on a Carrier and I haven't heard good thing about that brand. This is a 16 Seer 2.5 EER 4 ton unit. I feel this quote is really high. My parents got a 5 ton American Stsndard AC (5 years ago) and paid $5500 full installation. Can anyone tell me if this quote is within reason.

raymond neal

Subject: new ac replacement

remember you said including duct work which is very time consuming and expensive for the contractor. Carrier is a fine brand the parent company ICP did have issues a few years ago with leaking evap coils however that has been fixed. In ac installing it all comes down to the installers. they need to pull a good vacuum below -500 micron. Also you stated that you are installing a 16 SEER unit which is currently higher than the Gov mandated SEER of 13. The 16 will lower your usage cost but you pay more upfront for it. Kinda like a Hybrid car. you'll use less gas but spend more for it. Repairs on a 16 SEER also cost more down the road. Many use very expensive motors as in 3 times higher than the 13 SEER base do.
American Standard is a cheaper unit for contractors than Carrier also so this could have a impact on the price.
Basically what you are saying is: I got a estimate for a BMW hybrid and im comparing it to my parents new Chevy cobalt


Subject: AC Price ?

What is a reasonable price to replace the outside portion of a central AC?
I live in the Atlanta area.


Subject: Complete change out

Is $20K too much for changing out a 4-ton electric heating system with two RHEEM 4-ton R410a 16 SEER, variable speed blower motor, 15 kW heating element and two iComfort thermostats.


Subject: Compressor Needs Replacing

We have had a Payne unit since late 2007. The compressor just went out and I received a quote of $2300 to replace. Apparently, Payne started a 10-year warranty the year after we got the unit :(
Do you feel that this is a reasonable replacement cost for compressor and labor?

raymond neal

Subject: compressor needs replacing

$2300 is a good price about what i would charge my customers, however check with ICP, Paynes parent company on the warranty. Copeland Scrool (should be the comp manufacturer) typically has ten year warranties

Jerry adams

Subject: Ac replacement

I just had my Ac replaced here in mobile al.with a 5 ton unit from Lennox my house is 3000 sf.and it does not cool I have had there men out to check it ever since it was in stalled every time a different excuse so what I have done I have gotten three different companies to come check it out and they all say the same. I told climate control what they sed and climate control sed no way that's not the problem look like we going to court


Subject: AC SIZING


Amy Frank

Subject: new AC unit

We need to replace out AC unit and were quoted $6891.00 for a Carrier 5 ton 15 SEER installed. No new duct work needed. Includes 10yr parts 1 yr labor. Is this a fair price?


Subject: New AC Unit

That price seems high. My family and I have the same size unit. It is 8 yrs old and needs to be replaced. Carrier Infinity is a terrible unit. Would never buy another carrier. We got a quote yesterday for the same unit size unit for $5280. That includes a new thermostat, and cleaning out the air ducts. Hope that help Amy.


Subject: AC Installation

Under Hero program , I purchased a York LX 5 ton . 16 seer with EER 13. My house is a one level 2200 sq feet home . I paid $13,500 which covers the whole installation process with permits , new duct system which is the present standard size since my house was built in 2001. Also include the UV scrubber and wifi settings . Is that a hefty price I paid ?


Subject: Overpaid for sure

A York A/C unit is one of the lower end air conditioner units out there today. I replaced the unit of my house, 1500 sq. ft., built in 2003, in the Inland Empire where average daytime temps are 100 degrees all through the summer. My total cost for the Rheem brand unit was $3250, installed. I could understand you paying $13,000 for maybe a Trane brand, but even that price is awfully high for a house your size. Sounds like you, unfortunately, were taken to the bank. I am sorry to hear. My neighbor paid $5,500 for his A/C unit, installed, and his house never had air conditioning prior to his install.


Subject: New AC and duct work


I'm thinking about buying a house in PA. It's a ranch style home(1 level and a basement) at about 2,100sqft. It does not have central AC. I was wondering what I may be expecting to pay to have this home outfitted with central air.

Thanh Ho

Subject: Estimate for AC and Furnace

I am in Chicago area and I was recently quote $6500 for a 3 ton American Standard AC and Furnace with 15 years guarantee. My house is about 2000 sqf. Is this fair price and is this brand good. Thank you very much.


Subject: What ton unit do i have

My out side compressor just went out, there is a tag on the top. Does the tag give the information i'm looking for?
Thanks for any help

Margaret Ceballos

Subject: Size

I have a small house, only 1900 sq ft. What size AC unit do I need?
is a 3 ton big enough or should I go with a 4 ton. I have a 2.5 now and it constantly runs. Living in West Tx, will do that I guess. Whats the average price for installing inside and outside unit?

Thanks for any advice you can give me.


Subject: In west Texas the heat load

In west Texas the heat load is extreme you should factor 400sqft per ton. Measure the outside dimensions of your house to establish sqft and then subtract 250sqft on average for dead space I.E. closets, walls, pantries etc. If your house is actually 1900sqft living space I would recommend a 5 ton. If total sqft is 1900 - 250 1650sqft you would think 4 ton, but unless your house is very well insulated and you are in a shaded area i would still go with a 5 ton. A 4.5 ton would be perfect but there are no half ton increments available between 4 and 5. The main problem with up-sizing in your case would be that your duct system will be completely under sized. A unit will produce 400cfm per ton, thus a 5 ton will require a system designed for 2000 cfm. You must consider static pressure when sizing duct. Static pressure is also related to velocity so your system must be designed to maintain a certain static pressure thru out your hole house or you will have a lot of air in one room and hardly any in another. Dampeners can only do so much. For a name brand unit like your top three Lennox, Carrier, or Trane expect to pay 1200 to 1400 dollars per ton for replacement of unit. Add in new duct system and depending on your home design expect to pay around 10 to 12,000 dollars to fix your house up right. .08 to .1 static pressure is standard for residential. Sorry to ramble i live in Big Spring and know exactly what you need to be comfortable in this wonderful desert of ours with the most efficiency. I would only use a 2.5 ton in a tiny 1 to 2 bed house.


Subject: Bryant Preferred Packaged Unit..fair price?

I got a quote of $6100 for Bryant preferred series (14 seer, AFUE 80%) 2 ton packaged unit in Nashville area. Is it a fair price? Quote also includes 10 years parts and labor warranty from the contractor.


Subject: price

I'm getting a 2 ton, 14 SEER Carrier installed tomorrow, with new outdoor foundation, programmable thermostat, new furnace and coils in attic....for $6100. I wonder if I'm paying too much. Sounds like the same you paid and received.

Sean Daugherty

Subject: Cost

Hello I recently had an air conditioner replaced its a two ton 14 seeras well as the furnace and a new evaporator coil. I also had one of those hepa electronic filters put in and a new thermostat . It was done by right time services and the cost was 15802 and I believe I overpaid now. It was financed by hero program . Any advice.


Subject: A/C cost

Hello...I just wanted to let you know that we are looking for a new unit in sure to check out "Angie's List" to be sure you are getting a good deal. HOWEVER...we called for a deal at $ 2,999.00 for a New A/C...but what they didn't tell us is that the air handler is another charge!. A lot more! so be very careful and get in writing exactly what is covered and at what cost before they being.

good Luck :)

mark twain

Subject: bryant 2 ton unit

I got an estimate for AC unit installation. I already have heating and home is plumbed for AC. estimates covers unit, matching coil, permits, condensation pump, installation.
model is 113ana24000 - Bryant 2 ton.
estimate amount is $3000.
please can you help me know if this sounds reasonable?


Subject: unclear statement

"For a basic, two-ton model, expect to pay $3,000, a mid range unit will run approximately $5,000, and top-of-the-line A/C systems can creep up over $10,000."
The above is from the part about hiring a contractor. So are these the costs for the contractor alone? Or the contractor and the equipment? Or does this include equipment, installation and/or any warranty?

Mr. Wynn

Subject: Fair price?

I live in Southern VA with a 2400 sq. ft home that needs the A/C replaced. Was quoted $4k for 3.5 ton/16 seer Goodman unit and evaporator coil replacement and 2 safety overflow switches installed. Seem right?


Subject: Goodman a/c unit

Please do not purchase a goodman unit. This is the worst unit out there. In purchased a new home in 2009 with a brand new Goodman unit in it. I have to have repairs done on it about every four to six months. If I did not have home warranty insurance for appliances I would be broke. Hate this system. Do not get this system even if it is free..


Subject: Mold

They checked my ac unit which is 13 years old and it has a little mold. Do I have to change the whole system or simply repair it?

Sandy Hobbs

Subject: Replacing A/C unit since it died today.

Not sure what Brand I should get. I need a 5 ton replacing outside condenser and heating unit upstairs in hall closet. We had a bid today for a Rheem 5 ton $6,000. Our 2 story home was built in 1993. Do we need to be concerned that the installer says we do not need a permit from Banning, Ca. nor to be concerned with the existing ducks. Should they be tested before the new unit is installed and what about a new thermostat, what type? What about a Lennox are they over priced $8,000 to $10,000? Consumer Reports 2013 the only up to date data was American Standard, Bryant, Trane, Lennox, Carrier and Rheem were listed in that order for fewer repairs. Can you please shed some light so I can be more knowledgeable.


Subject: I don't recommend Rheem. It

I don't recommend Rheem. It has been less than 5 years since installed a new 3-ton high efficiency A/C unit, and have had indoor evaporator cooling coil leak/replacement for two times, indoor blower down/replacement for 1 time, outdoor expansion valve leak/replacement for 1 time, freon feeding valve malfunction/replacement for 1 time. My neighbor has the same brand A/C unit but different model of 15.5 Seer efficiency for 5 years, and has had indoor evaporator cooling coil leak/replacement for 2 times, outdoor fan motor down/replacement for 1 time and indoor water overflow/spill for 1 time. The A/C unit price was good with 10 years parts warranty. However each repair labor cost was $400-$500. I should think twice of the A/C unit quality prior to purchasing.


Subject: Complete System Replacement

I have 2 - 3ton (R22) units that have failed after 30+ years of service.

I was quoted about $31k for a complete system replacement (Houston, TX)
- conversion from 1-stage to variable
- 2 new 3ton 410A units @ 16-SEERS rating
---new base plates for compressors and new electrical shutoff boxes/wiring
- 2 new evaporator coils / just about the entire attic unit for both.
- completely new duct work and redesign.
---new vents and adding 4 in-ceiling room intakes to offset the below-avg airflow wall intakes.
- new thermostat wiring (I already have 2 Nest units)

Walter White

Subject: Replacement Costs

Hi David,
You have many variables or "extras" in your cost, so as is always recommended, 3 different bids would be very appropriate. Being in Houston, I see nightly ads by a prominent company, but know they are known to be very high priced. Shop around. Your costs may be lowered, the SEER may be raised, or both. Good luck!
- Walter

scott gordon

Subject: changing the inside unit

A/c repair company quoted me 4800 for a trane inside unit alone. Is that price far? My coil are rusty however, there is no leakage. The a/c looks to be running well at this moment. Or should I just replace evaporated coil.


Subject: Pricing Check for a new Air Conditioning System

I have been advised by Don Hoffacker that I need to replace my A/C system with a newer one with Puron Refrigerant. He has quoted me 3 options installed price of
$ 5092 for a 3 tonne Bryant 116BNA 036 ( 17 SEER).
$ 4672 for a 3 tonne Bryant (15 SEER)
$ 4374 for a 3 tonne Bryant 114BNA036 (14 SEER)
Do that sound about right for installed prices? Also, what are there relative advantages of each over the other. I understand Pepco has $ 550 rebate for them. Do all of them qualify? Thank you in advance for your input!


Subject: replacing heating and air system

I have been quoted $7,500 for a 80 percent furnace, 3 ton coil, 3 ton AC, 13 seer and r410 freon, This cost includes installation and a 5 yr warrenty on parts and 20 year on heat exchanger. IT is a RHEEM. Is that a good price? It there a cheaper option?


Subject: replacing heating and air system

I got a quote for 7-8000 for a mini split system from 4 different places. I bought the same SKU unit online and paid someone to install it for me. The finial coast was around 2000 saving me over 5000. People 7500 is a huge ripoff unless 5000 in labor cost for a few hours of work is ok with you.

Jack conachy

Subject: Good price but ask questions

Hi Lori

$7500 is a very good price for the system, as long as they pull all the permits needed. you can go with cheaper options but look at it this way you won't get the extended warranties and when you have problems out of warranty it will get expensive. Something you should ask is for them to preform a duct leakage test no point putting in a new system if the ducts are in bad shape, if the ducting is good below 15% leakage your good to go but if the ducted are old and leaking a lot you could be out another $1500 for new ducts. If the contractor is any good he should do his best to bring the leakage below 5%. But remember you get what you pay for. Depending on which state your in you may need a Hers verification on the system after the install is done, if so the Hers inspector will restest the system after the installer and provide paperwork to have your permit closed this can run a couple hundred bucks


Subject: 2 Stage Condenser or Not

This winter we had our 50, yes 50 year old 150,000 BTU, 2 pilot cast-iron burner heater replaced with a single speed blower heater.
Now it looks like it's time to replace our 19 year old AC condenser. I've been told to replace with 2 speed but does it make a difference if the blower unit in the attic is single speed?


Subject: Carrier vsTrane?

I am in the market for new HVAC in Maryland DC suburbs. I had 4 reputable contractors come out and narrowed it down to two. Both contractors offer high efficient unites. Based on cost, Trane is 4K less upfront less than Carrier. I'm thinking of going with Trane because of it's price, however I am not sure which configuration is better.

Michael and Son $14,875 Carrier Unit

-INFINITY 17 - 3Ton 36,000 BTU 17 Seer rated
-96 GAS FURNACE INFINITY - 80,000 BTU, Up To 96% AFUE, Multi- Position, Two Stage, Variable Speed Gas Furnace
-Did not provide details on Coils
-Contractor will give me serial # to submit rebate to my power company to get back 1K

Accel Heating and cooling ( on behalf of Home Depot) $10,895 Trane Unit

-XV95 97% AFUE 100,000 BTU Two Stage heat, Variable Speed blower
-XR17 ,3 Ton 36,000 BTU up to 18 Seer rated
-Trane Nexia XL824 Thermostat (Wifi)
-Trane Humidifier THUMD500 up to 18 gallons per day
-Honeywell Media filter
-4tXC Cased coil
-Contractor will submit rebate to my power company and discount price upfront

Gary Roberts

Subject: Wrong ac coil in system

Just had the HVAC spring inspection on a house recently purchased here in Gainesville, FL and the inspection identified a mis-match between the ac coil and both the coolant and the ac compressor. Unit is original to the house which was built in 2001. The coil in question was replaced o/a 2010, by a company no longer in business. Unit is a 3.5 ton unit and we keep the house on 77 degrees during the summer. So far all is well -- house is cool and electricity bills seem to be under control. Here's the report:

"Found that the replacement evaporator coil installed in this system is a 3 ton evaporator coil that was designed for use with new r410a refrigerant while the outdoor unit is actually a 3.5 ton that has r22 refrigerant in it.
This is causing higher than normal liquid line pressures and higher than normal subcooling readings. If left operating this way damage to the compressor could occur. It is our recommendation that the evaporator coil in place be replaced with a properly sized coil that is designed to operate with r22 refrigerant.
Suction PSI: 66.2
Head PSI: 245
Superheat: 13
Subcool: 46
Compressor Amps: 16.3
Fan Amps: .7
Motor Amps:
Fan Cap MFD: 7.5
Comp Cap MFD: 54
Supply Voltage: 242
Brand Model Serial #

The ball park estimate is around $2200. Should the compressor blow out, they estimated that it would cost ~$2000, and the coil would have to be replaced.

There appear to be two problems: a 3.0 ton coil in a 3.5 ton system (compressor) and a r410a coil in a r22 system.

My bias is to wait until the system fails, and then replace the whole thing with the latest technology r410a system with everything in synch. I'm basing this on the age of the system, the fact that everything is working well and appears to have been doing so for the past 5 years, and a desire to be fair to the environment.

Any thoughts or advice?


Subject: evap

to my understanding they no longer make R-22 Evaporators. My supplier matches a 410A evaporator by size. Then you replace the TXV with a R-22 TXV

My opinion is if your system is running and is cooling it should be OK I wouldn't worry about the system as long as you are not getting liquid back to the compressor. My opinion is based on some of the shabby work I have seen and the systems ran without a problem. Although using a 3 ton evaporator in a 3.5 ton system is something I have not came across. If you decide the change the evap you can goto a 4 ton to increase efficiency

Jason Boyd

Subject: wrong size coil yes, but...

Yes, it is a half ton to small, but I'm almost positive that the metering device, be it txv or fixed orifice is for R22. Pump down the system and swap out the indoor coil with a modulating txv. Perfect super heat is 12, subcooling varies by the manufacturer. It's doing all it can do. If it were mine, I'd run it until it dies. Just keep your filter clean and wash out your outdoor coil. You would be surprised how much that helps. And if it's 85 degrees out and your running a 225, it's only about 10-15 psi high. Not bad. The techs incentive may be that they get a spiff for selling. Have a good day and... Keep cool

h janane

Subject: change the whole a/c sys

i have a1998 a/c sys .ihave no knowledge in this field.i have about 5 estimate.themore estimate i have the more confused i quote states;replace the existing one by a3tonTrane,XL16i 2stage.XV80 furnace,high efficincy Trane coil and Honeywell8000 thermo.what are the things that come along with this upgrade.Please help asap.thanks

Chris Treacy

Subject: change the whole a/c sys

They are going to replace the old, inefficient system with a new 3 ton 16 seer (Seasonal Energy Efficiency Rating) which is pretty good. The unit is also a 2 stage. A two-stage air conditioning system is more energy-efficient and better at maintaining a narrow temperature range and it will save you money on your utility bill. The Honeywell 8000 is a good thermostat and is needed with your unit because it works with 2 stage equipment. The furnace that is mentioned here is a Trane gas furnace that is 80% AFUE (Annual Fuel Utilization Efficiency). Not sure about the coil other than that it should be a 3 ton coil. Depending on what state you live in and what the temperatures are like during the year will determines if you need a 2 stage unit. If it doesn't get extremely hot 100 degrees+ or below around 15-20 degrees, i wouldn't see a need for a 2 stage unit. That one isn't a heat pump so there really isn't a need for a 2 stage unit unless it gets above the 100's. Although they say that 2 stage equipment is more efficient, if you were to get a 16 seer single stage unit with a TXV instead of a fixed orifice, that unit will be very efficient and good on the electric bill. Installing a 2 stage unit with a furnace + a coil, also being its a Trane can cost alot of money. Don't let them sell you a 2 stage unit if its not needed.


Subject: All new components

Is $9300 a good price for a 5ton 16 seer trane compressor unit and a variable speed air handler inside?


Subject: R22 vs M099 vs 410A

My current A/C broke down because it wasn't blowing out cold air. I don't know anything about A/C. I called for service and contractor said i have R22. He suggested for me to buy a 4 ton dry unit with M099 start up now because after 2015 they will no longer sell dry units. I researched online and people said R22 is on its way out and I should pick A/C with 410A. What is the difference between M099 and 410A? Should I get dry unit with M099 for $3500 or a totally new system for $8000 (those were quotes from my contractor).

F L James

Subject: R22 vs MO99 vs 410A

R22 is currently being phased out because it is a ozone destroying gas
MO99 is a replacement for R22 (bandaids, patch work) not a long term fix
R410A is a true replacement for the long term.


Subject: A/C thuggery

Seems to me after reading many of these posts the A/C business is wrought with corruption and graft. I think many of these issues could be solved by just getting 2 or more estimates or opinions from reputable vendors. A vendor that has been in business for awhile is "probably" going to be legit. A friend of mine would have got ripped off by one of his supposed "friends" who charged him $1800 dollars more than some company he didn't even know. Unfortunately, I am also skeptical of "Christian" businesses, as they have been found to be more prone to fraud in my area of the country and this is from someone who goes to church every Sunday.


Subject: Is $25k reasonable for a new unit?

I recently moved into a new home in New York with no duct work and I am looking to install central air. The house faces north/south and is approximately 2500 sqft. It is a split level home and would need around 18 vents. I was quoted on a high efficiency mini duct system at $25,000 not including an electrician to ad a breaker panel. I was certainly expecting this to be a major cost but not that much. Does this seem right?

J Green

Subject: Reasonable Price

I was given a $23, 500 all inclusive quote today from a reputable company on a similar type job. I have a single 30 year old 5 ton Ruud unit cooling a 3,300 sq ft single level house in Oklahoma. The quote is for 2 x full 3 ton Carrier units (a/c and heat), moving the air handler from the garage to the attic, the carpentry work to build the attic walkway and platform as well as a required second attic access point. Also, they will add ceiling about 15 ceiling vents, a third return vent, and cement in the floor vents in the slab foundation that are original to the house.

Matt Migliore

Subject: AC Installation

Based on what you are stating it sounds like a 3 to 4 ton high efficiency high velocity air conditioning system that you are looking to have installed. That price seems completely in line with what a reputable and experiences high velocity installer would charge.

Paul Pogue
Paul F. P. Pogue

Subject: For a job this big, and

For a job this big, and especially if you're suspicious of the number being quoted, it's always worthwhile to get three bids from different highly rated Angie's List contractors and compare them. It takes more time on the front end, but it's well worth the savings in both costs and potential headaches for a major renovation. Angie's List founder Angie Hicks explains more about why it's important to solicit three bids at Thanks for your question! -- Paul F. P. Pogue



Subject: NEW AC

I need a new condenser and inside heat/and a/c system, I have had a manual J load calc. done recommended for 1482sq ft was 2.5 ton, I live on a bay in just outside Houston Tx, All the contractors are pushing a 3 ton unit because they don't make 2.5 ton unit in variable speed blower, some contractors are saying a variable speed blower wouldn't help if you do not get the complete variable speed system I would just be throwing away money, should I just get a regular system at 2.5. ton if so what brands do you recommend or should I get variable speed blower and 3 ton unit

Brian Ellsworth

Subject: new ac

I have been a service tech for commercial and residential and find your question the same question I would have. I would like to know what the design temps are. I think energy star would be 78 interior or target temperature and the design temp is based on the average out door temp. Do you think 78 would be comfortable on a hot day and do you find the design temperature to be what you have experienced in the past summers. I know Texas can get hot but not sure of the humidity there ....Lets say the temperature goes above design temp don't expect to hold 78 degrees on those days...OK you will save energy cost with the smaller unit for most part... Back here in the east we have a shorter cooling season and it gets hot on those few days in the year. The customer who just paid thousands expects to be cool and doesn't care about the energy saving because the electric bill is still gonna be high anyway..Most ac blower motors have from two to five speed settings anyway. That can help with the humidity but not the capacity It..I guess your question is do I want 4,6 or 8 cylinders.


Subject: Calculations of AC

Go to a company that has an ACTUAL ENGINEER and have this FULLY evaluated and calculated. There is NO such thing as "not having or not making" the proper sized unit. At the VERY least you can get a two stage unit that will run say, 3 and 1.5 ton cycles. or 3 and 2 ton cycles.

When they calculate they will take into account your insualatio or the amount that you will have at the end of your project, they will calculate EACH room by overhang of eaves, shading, direction or orientation of outside walls and the number of doors and windows and thier sizes. Each room will be calculated seperately, kitchen will include over and cooking use etc. Laundry room the heat of the dryer etc. They SHOULD also calculate by the average number of PEOPLE the house is designed to house, 5 people generate a LOT of heat. Add two 55 pound dogs and a cat or two and even more ac is needed!

The size of each duct and return must be calculated and total flows known in order to properly set up the handler cycles. For instance a south facing master bedroom wiht two large windows, 2 adults and 2 large dogs sleeping in it take a lot more conditioning than a Norht facing small bedroom for a single child. YOU WILL want a variable fan unit no matter what.

If you over size the unit it will take too much humidity and freeze the heat exchanger over or cause other problems. Too large a unit will start and stop a LOT and wear parts un-necessarily, it actually makes the hosue LESS comfortable than a smaller unit running constantly. It is better to err to the lower in a little than too big. Yes it means that the unit will run more, but with less air blowing etc. It may get a little too warm in the house at the worst time of day if the unit is too far undersized.

All of this is why they have designed 2 stage compressors that run at say 3, 5 ton or 2,3 ton. It just makes a LOT of sense.

Have your ducts REPLACED with properly sized ducts and be SURE that you have properly sized air return ducts in EVERY space. There is NOTHING more expensive than losing all your conditioned air and having to heat or cool outside air. THe air conditioned air being erturned to the handler is the ONLY way that you can lower the temperature more than 15 degrees average from the outside temperature. In other words without a return a 100 degree day will only allow the interior to get to 85 degrees or so and run the unit constantly.

BEFORE you start the AC project, look at your roof, in the south, meaning houston, (provided you haev a pitched roof with attic space) you want to have thermal reflective barrier inside your attic under the rafters to within 4 inches of the top plates and 4 inches of the ridges. This will REFLECT the radiant heat and severely reduce costs. If your ducts are in the attic they will not be absorbing nearly as much radiant and attic ambient heat.

If you have many cold nights a year then also place the reflective barrier over your insulation! This stops heat loss.

If anyone tells you "we can't" t means they DONT want to or only deal with certain units or companies. Most of these companies have guys that because they have been doing it for 15 years just take a guess at loads and ac sizing. This is not the way to do things and certainly does not create the cheapest and best cooling for a house.

I have seen oversized units installed that cost the home owner more to operate and less comfortable than the proper sized unit, when I say more to operate, I mean over twoce as much!

Good luck and if you cant find a good company then find an engineering firm and ask for a referral or pay for the load calculations yourself and have the system drawm and designed by them. Tell them NOT do designate anything but hte ac sizing (or use the words or equivalent), in other words that you will negotiate and choose the unit and contractor, unless the engineer's referral beats the bids you get.

Good Luck


Subject: new hvac system

I just bought a 2 family home in CT. ifirst fllor is tenant I have the 2nd and third floor. For my unit only I am looking to add a whole new system on the 3rd floor including heat and ac. New duct work as well. That floor is unfinished at the moment but insulated so they have free run to put duct work in. The unit will heat and cool the 2nd and 3rd floor which total about 1800sqft. I was quoted $25k for a high efficency 95% gas system with 2 zones. Are they nuts or am I unrealistic?

Matt Migliore

Subject: system installation

depending on the exact specks of the job that is a fair price. The installation of a full system is a big job and having it done by a professional organization will not come cheap. You can always find someone to do the work cheaper but this is a large investment in the home and needs to be done correctly.


Subject: central air

I have a 1200 sqf house with full basement, I have a problem with the central air 2 ton... the condenser went bad and leaked all of its coolant.. the unit is approximate 15-16yrs old.. I had a repair man come to look at it to find out about these things.. is it a fair deal to have it replaced for 2600.00,, I absolutely have no idea....any information will be greatly appreciated...

cool rite

Subject: 2600 for outdoor unit and new

2600 for outdoor unit and new evaporator inside is a good price. If they are just replacing the outside condensor, get another contractor because why would anyone match a new unit up to a 16 year old evap is beyond me and make sure the new unit is a 410 unit. You do not want a dry 22 unit . 22 is going away. Again do not match a new unit to a 16 year old evaporator. And get the 10 year parts warranty. All manufactures offer that now. And it DOES NOT cost extra. You just need to register the equipment
Online. The manufacturer DOES NOT charge for it. I know someone who charges to extend the parts warranty. Big time theif

Licensed. Pro here


Subject: need a new AC unit

Our home has 10-12 ft. ceilings, and area is about $3500. We bought the house with a SEER 12 or 13 unit that seems to be lacking and that cannot provide the cooling or heating without a very high monthly power bill.

What is roughly the cost of a suitable unit with installations to bring down the monthly power cost?



Subject: 12 ft

You should hire an engineer or heat load calculation specialist and pay for the calcs. Also review your insulation and ….most importantly you did not mention whether you have ceiling fans? Without ceiling fans the house will feel cold in winter and hot in summer in my experience.

Modern fans on low speed, blowing up in winter and down in summer are very efficient, more so than the handler blower is.

I would look at this as a major project to assure proper insulation and circulation as well as properly sizing the ac system

Good luck

Nancy Akgun

Subject: A/C for condos

My a/c should be replaced. My condo is 1300 sq feet, windows are tinted, live on 3rd floor of a 9 story bldg. the windows and doors are leaky, via a match test, so I use weather stripping to reduce $$ for cooling. I also installed a humidistat and in the summer months, when the apt is not occupied, set t=75, humidistat at 65.
Is there anything else I can do in addition to purchasing a new a/c system, to keep my home mold free?


Subject: expensive?

I was just quoted $8000 to replace outdoor condenser only (4 ton unit). The quote doesn't have any sort of breakdown. Seems like a lot considering the base cost of units. Is it?

Dino Medina

Subject: 8,000 for a 4 ton condenser , WHAT ??

I don't think so !! 8,000$ Too much . How many seer #1 ? 2 . Are you replacing the air handler also ? 3 . Ask for a complete break down inspection of the unit . Units are always cheaper to the contractor or the tradesman / installer . ok 6,500 for both parts 13 seer ... ...


Subject: A_C

Help please, our A/c are blowing air but not cold . Should we replace it or it can be repaired?


Subject: What's a fair quote to replace R22 Heatpump?


Great thread...appreciate all the knowledgeable folks out there. Had a few questions.

My compressor went bad on my Carrier unit and I'm being quoted ~$4000k to purchase/install a new outdoor condenser [Payne 4 ton 208-230v, 1 phase compressor (RR incl.)]

Does this sound like a fair and reasonable price?

It seems like a R-410A unit would be more efficient but I'd need to also replace my air handler. The other question I had was, is there simple math to determine the cost advantage of the more efficient R-410A over R22? So if I invest $2000 more to replace the whole system with R-410, I'll recoup my investment in X years?

Appreciate any advice and experiences people can share.


Matthew Migliore

Subject: replacement

$4000 for a 4 ton outdoor unit with installation is a very inexpensive price. I would be a little curious how good of an organization you are dealing with based off of a price like that.


Subject: Payne unit

Yes 4k is very expensive for just the outdoor unit considering it is a Payne. You need to find out the efficiency and the refrigerant doesn't make a difference in efficiency. Stick with 410 refrigerant so you don't get bit in the long run purchasing a unit with r22. That refrigerant will be obsolete by 2020.

Flo Hoyt

Subject: Coolant leak

I was told I had a coolant leak. They put in 4 pounds and said I should have it checked in the next few day for a leak, so they come back and say it is very expensive to get a leak tested like $1000.00. And perhaps I should just have the whole unit replaced. It has only been used for 5 yrs however this home is 12 yrs old. It sat empty for 6 yrs.
what would be your suggestion?


Subject: leak

First, the JOB of a service tech is to check and FIND the leak. Without knowing what and where the leak is there is NO way to tell you to replace anything!

I would write the state licensing bureau involved and file a formal complaint agianst these guys.

Would you replace your car if you had a radiator leak? Think about it.

You could have a bad accumulator, a bad heat exchanger (radiator like thing) a leak in the copper tubing (which they wont replace normally so your new unit will leak). You could have a leak in the pump itself ..all kids of possibilities. The SOURCE and CAUSE of the leak must be determined. There are dyes and systems to find this leak and any tech should have used it when they first beleived there was a leak.

After filing a formal complaint go find a good honest company.


Subject: Your unit

Needs to be replaced. Adding refrigerant is a temporary bandaid.

Jarod Dainoviec

Subject: cost

Finding a leak is expensive due to time it takes them to find it. However, if you really want to look for a leak I'd start at the main connection points and take some soapy water and put over the top of the joints...if you see bubbles coming out after applying you found your leak $2 investment. I'd get quotes from another company. $1000 seams pretty expensive unless you have TONS of piping.

Dawn Picard

Subject: response to coolant leak question

I suggest you find a different company as this one is definitely trying to rip you off. To find a leak they inject a dye into the refrigerant at a cost of approximately $20. They return, unfortunately you pay for the visit, and check with a black light and yellow lensed glasses. The combination of the light and glasses color cause the dye to glow yellow. If the leak is in the condenser coil, the replacement depending on your unit could be less than $1000, including labor. I have an Armstrong unit and it is around 20 years old, same age as the house which doesn't mean anything, and only recently have I had to have any more major repairs done. The approximate charge of refrigerant is $35 per pound. I would seriously consider a second opinion or even a third. Best of luck to you.


Subject: home owner installing

The EPA requires you to be certified for refrigerant handling it is very misleading to state that an homeowner can install thier own a/c system

Joe Adcock

Subject: sizing A/C system

To correctly size a heating and cooling system a contractor should visibly check out the complete existing system including: furnace / air handler, cooling /evaperation coil, condensing / heat pump unit, refrigeration line set, line voltage wire sizing and length, ductwork sizing and material is is made from and type of insulation protecting it. Measure existing supply air / return air grills and type of grill. That is first step if you have a existing system. If you don't have an existing forced air system the contractor can skip most of the above mentioned. Your home needs to have a heat load calculation done to correctly size the new forced air system to work properly and perform to maximum efficiency levels. Homeowners should get at least 3 estimates from qualified installation contractors and be sure to check out the company you decide to use. Ask for references and check with BBB and the state contractors license to see if the have any complaints against them. Also do a search on the web to see if anyone has commented on the installation the recieved. Good luck... A correctly installed system can be a dream come true ... a system not correctly sized or installed can be a lifetime nightmare.


Subject: two ac

if you have two ac, upstairs and down. Nobody is upstairs during the day. Should you just run the air before bedtime or is cheaper run all day and keep the temperature down


Subject: running ac part time

WHat you are saying MIGHT be true in some circumstances. If the upstairs is block wall exterior then you will lose a lot of money and never be comfortable especially in the south where night and day temps hardly vary. also it depends on how each system is set up. I have seen some that are not "upstairs/downstairs" truly but actually are up rear and down front side etc…having both units wiht up and down ducting.

IT is almost always best to limit the temperature in unused areas to some maximum in summer and some minimum in winter, turning the unit off creates exceptional loading at start up and long heat sink times (the time to change the temperature of the walls and floors themselves!). Best to limit the temps to the highesst in summer that YOU find comfortable and lowest in winter etc, with regard to how quickly the house recovers the temperature at use.

be sure and assess your insulation and window/door leaks etc! This all helps a lot.

Darrell Ardoin

Subject: Compressor Sound

My next door neighbor complains that my compressor makes a sound that disturbs her sleep. The unit is 2 yrs old, and is highly efficient and quiet except for a deep pulsating noise that I have not noticed before. The frequency is low, and actually causes small objects in both houses to vibrate. The installer says the pulsation is normal.....Any thoughts?


Subject: Size if unit

I read a lot of questions regarding the size of an HVAC system for a house base on sq ft, and my recommendation is to do a heat load calculation base on a manual j, every home is different. The size and quality of windows, the R factor of insulation, the high of the ceilings, the position of the house, appliances, occupancy, position of house (facing south or east), are some factors to considerate to define how many BTHU the house need to remove the heat. The role of a tumb (400 sq ft per ton) does not to be considerate for your new investment.

Terry Angelli

Subject: A/C sizing

Many of you folks are asking about A/C sizing (tonnage) needed for particular spaces. There is NO ONE SIZE FITS ALL for A/C. Old school used to use rules of thumb that have long been proven to be severely lacking in accuracy. Many many factors play into A/C sizing: insulation, doors, windows, occupants, exposure to the sun, shading from trees, slab or foundation and the list goes on. Do yourself a favor and have a contractor come in and do a "heat gain calculation" using the ACCA (Air Conditioning Contractors of America) Manual J.

This is NOT something you can do yourself. Old school it was done on paper and a rather lengthy procedure. New school it can be done on a laptop computer in a matter of a few hours and a print out presented on the spot. Typical software will provide "good", "better", "best" systems and are priced accordingly.

If an estimator says something like "you need one ton of cooling for every four hundred square feet" run, fast because he is a hack.

I know from where I speak because I have over 44 years in the industry, hold a Massachusetts Master Sheet Meeal License, Refrigeration Technician License and am a full time instructor at a post secondary private trade school.


Subject: hvac

Maybe you should stick to sheet metal. 400 square feet per ton is a good rule to go by if you do not get a manual j heat load. Before you call other companies "hacks" maybe you should just give good advice. For example, if you are not sure what size unit to purchase, any licensed contractor can do a manual J heat load and take any questions out of the equation. If they do not have the program on a portable laptop, a mere 75.00 is the cost to have a outside company do it for you. There is no good, better or best option. It goes by each individual house with all factors taken into consideration and has only ONE option of what size you need. Best advise- Get at least three quotes and compare prices, dont be pressured into buying, get at least a 10 year warranty, and stay away from companies that immediately want to bad mouth other companies or are "all in one companies" ( a/c, plumbing and electrical all in one company).
I am speaking with over 35 years experience and run a very successful company in florida.

Sharon Cocina

Subject: Your Comment on AC/sizing

Hello, I read your comment and was glad to see someone with knowledge and not wanting to take advantage of a customer. My AC service is telling me to start saving for a new system. Mine is about 10 yrs. old and it's been serviced 2 to 3 times a year.. They always say it's in great condition but lately, I replaced a compacitor, motor, duct work, etc. He says it will probably cost around $8000,,for 2.5 ton unit.. It's a Rheem... My house is about 1600 sq. ft.. I have a wall unit in our family room because that was just added on to make the extra sq. ftg.
My question to you is, Would I need to replace all the duct work too? And what would an AC unit cost now?
Thank you in advance for your advice..
Sharon Cocina


Subject: A/C replacement

Florida has a new law that when you replace your unit, the contractor has to inspect and seal your ducts, Hmm that adds to the price of replacing the unit. Also most contractors will want to replace the ducts rather than inspect and seal the ducts which is a lower price option .

Robert Harrison

Subject: Pricing and sizing AC units.

Buyer be ware. Good properly installed and supported Airconditioning equipment is your best value. Purchase a system today for say $6000 if you have to replace it again in 10 years because it did not fit your needs, failed to work properly or was expensive and problematic to maintain it may cost you more like $9000 to replace it. You have spent then $15,000 plus repairs on something that did not fit your needs. I have estimated, installed and designed airconditioning systems for 35 years and the best system is the one that is installed by the most qualified contractor not the average contractor or the least qualified contractor.

April Moore

Subject: new ac

My home is less then 800sq ft. what will I expect to pay for all of the needed installation?

Kleve Smith

Subject: Complete HVAC system cost?

Our old "farm house" 1 and 1/2 stories with 8 foot ceilings on pier and beam foundation doesn't have fcentral heat or air. what can we expect the cost of a complete system (using Propane heat)? Ground floor 1300 sq. ft. 2 bedrooms upstairs @ 500 sq. ft.

We've even consider going with a Ductless Split System but are concerned the cost effeciency would not be in our best interest.


Subject: AC article

One note- After upgrading ours, we found that our original AC return vents and ducts were inadequate for today's systems. We ended up adding a new return but it was fairly major inside mess to do it.


Subject: new system for my home

I have a 2900 sq. ft. home and need a new a/c. What should i expect to pay for a replacement? and i have rented a house before and had the a/c replaced and they had to replace the heat pump as well. will they have to do the same thing here? Thanks very much for the help.


Subject: Inside unit

We have a 1800 sq ft home, with 2 units, as 500 sq. ft was an addition.
we have 2 units. One is a 2 ton unit outside is approx 5 years old, but the inside unit is from 1986. We are looking to replace the inside. What are the specifications I need as this unit cools the major portion of the home . It is currently stored in a small ventilated closet area... will this propose a problem also? What cost can I expect? Thanks

Donald macdonald

Subject: How big a system?

Want to cool a 26x60 space, Quonset roof, 13' diameter, covered with solexx covering that has an low 4 value. In the caribbean, and need 85 daytime, and 75 nighttime. How can I adjust the 500 sf-ton to accomplish a size?

john rosser

Subject: Leaking 3.5 T. Rheem compressor.

This unit is 9.5 years old,works well except compressor leaks.
Uses old R22 gas.Air handler is in great clean condition.
Can this unit be repaired with a new Rheem compressor(OEM)?or must
the entire system be replaced?


Subject: Leaking 3.5 T. Rheem compressor.

You can use a compressor mad by Bristol Compressors Intl, Danfoss, Copeland or other compressor manufacturer.
But it must be replaced by an EPA certified Tech or Contractor, who will do R22 recovery before opening the system, and after repairs will leak check, vacuum test and refill the system. You may also want to consider Condenser change out because new condenser will be more efficient and it may be wise to change out the evap coil also and convert the system to R410.
Cost Difference? $750.


Subject: Leraking 3.5T compressor

Compressors are hermetically closed and non repairable. Is the leak from compressor itself( not likely) or Brazed join is leaking? Leak ( refrigerant leak ) can be found and repaired, as long as the system is properly emptied ( recovered) which is the case even if you are going to change the compressor or Condenser all together.
Price of changing the compressor may be within $ 800 to $1200, depending on other components need replacement too.
Changing condenser may also require changing the coil ( by heater) if the new system is going to be R410 due to R22 phase out. Condenser - $800, Coil $650, recovery, nitrogen check refrigerant fill $400 . Upgraded unit- better efficiency.
Compressor and related parts change out - $800 to $1200, Recovery, leak test/fill $400. Nothing upgraded, just replicated. The choice is yours


Subject: Leraking 3.5T compressor

Compressors are hermetically closed and non repairable. Is the leak from compressor itself( not likely) or Brazed join is leaking? Leak ( refrigerant leak ) can be found and repaired, as long as the system is properly emptied ( recovered) which is the case even if you are going to change the compressor or Condenser all together.
Price of changing the compressor may be within $ 800 to $1200, depending on other components need replacement too.
Changing condenser may also require changing the coil ( by heater) if the new system is going to be R410 due to R22 phase out. Condenser - $800, Coil $650, recovery, nitrogen check refrigerant fill $400 . Upgraded unit- better efficiency.
Compressor and related parts change out - $800 to $1200, Recovery, leak test/fill $400. Nothing upgraded, just replicated. The choice is yours

Jim c

Subject: Air conditioner question

Does anyone know how many tons I need if I only have a 975 square foot ranch home?? Please help. I don't wanna overspend on a unit if I do not need to. I recently remodeled a computer room to a bedroom for my teen. He has an 8 year old brother and needed his own space but he also cannot sleep in the hot months without an air conditioner in his window. We now need central air to fix the issue. Thank you all for the help.

denise oconnor

Subject: air conditioning

A two ton will suit your needs one ton for every 400 to 500 sq ft the seers are an efficiency rating and have nothing to do with air coolness or heat a small house should not need above a 13 but they will try to sell you a 14 seer for a few hundred $ more, one point should not make that much difference unless you are in a long high heat area I live in VA gets hot but not the length of heat in other southern states


Subject: size

what is you have a 1000 sq foot home with 8' ceilings but the main living area has vaulted ceilings up to 16'?


Subject: question about the ton - A/C unit

I have a 1630 sq ft - indoor home - and I currently have a 3.5 tons - Trane unit that lasted 17 years. Now I need to replace it. Is 3.5 tons too much for the size of our home? Pls help me out. Thanks


Subject: sizing

3.5 tons is to large. It will cool the space to quickly and it will feel uncomfortable.
The air conditioner should run long enough so it can pull the humidity out of the air.
You will be able to raise the temperature on the thermostat because you'll be comfortable because the air is dryer.
I would drop the size down to a 3 ton.

Raul E Cordero

Subject: central air

I need to replace my central air unit just the part ouside the house the compresor uit i thinnk about a carier unit between2.5 or3.0 ton i need to know about the price for this unit thanks

Denco AC - 29 years HVAC experience- Licenced Contractor

Subject: HVAC Cost

Figure 500 sf of living space per ton on AC. 2.5 ton = 1250 sf of space with 8 ft ceilings.

3 ton = 1500 sf of living space with 8 ft ceilings.

Cost for new 14-15 seer heating & cooling equipment is $3.60 per square foot.
That is installing a good mid range line of Carrier Equipment. My offices are located in Arlington Texas

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what should you pay.  You pay what you can afford.  1100sqft unit requires a min. of a two ton unit.  prices range from 2100-2900 depending upon the seers of the system.  13 seer is the min. the law requires  and for your situation with 1100 sqft.  do not worry about the seers as long as it is to code.  the bigger the house the more seers for economy.  1100 sqft is at the border line for a two ton system.  It is more important to have your new system balance, there is where you get the economy on your electric bill and gas.  Bryant, lenox, ruud and carrier are the brands you should stay with.All have the same basic factory warrantee and will last you longer than you expect as long as you maintain it with regular check ups twice a year once in the spring and then in the fall.

raymond gonzalez
koolray heating and air
? offers a nice sizing chart for HVAC capacitors and furnace capacitors. Most of the capacitors I've looked at are $5 to $15 dollars, so a little less than Home Depot and Lowes.


Replacement is really easy, but be sure to watch a youtube video on how to replace it like this one:


Stay safe and hire a professional if you feel unsure about doing it yourself!

The only thing of importance, is the hvac professional you choose to use. Alot of manufacturer's pieces are built relatively the same, and will last about the same amount of time. The thing that matters most is what you can not compare between companies, and that is the installation. Purchasing a system is not like purchasing a car, where no matter where you buy it, they are all the same. Each installation is different, and usually what you are paying for is the level of expertise, and quality of the installation, the company who will actual give you the warranty, and the comfort that you will receive. Manufacturers warranties disappear every day. They always have a loophole where they can get out of paying, but your local dealer wants to keep you happy for future work, and to protect his reputation in the communiy. Look up 4 year old Nordyne and Goodman warranty problems. Choose the HVAC professional first. It will cost you the least in the long run. I have had to totally redo plenty of installations that were just performed because of an uncomfortable customer, and a system that keeps breaking down. The equipment is only as good as it's installation, and over 70% are not installed correctly.
I think maybe you are confusing SEER, which is an efficiency-related rating (higher SEER means more effective use of the electric power used to compress the gas), and TONS rating, which is a measure of the total cooling power of the system. (Tons used to mean how many tons per hour of ice was used in evaporative cooling building systems - a Refrigeration or Cooling Ton equals 12,000 Btu/Hour of energy exchange. A BTU, which is another antique measure but still used, is the energy needed to change the temperature of a pound of water one degree fahrenheit. Unfortunately, because of varying humidity and evaporation, this is not readily related to house air heating or cooling without a lot of assumptions and some computations. Relating this to today's world - the Manuals BayAreaAc referred to account for all these energy conversions and determine an estimated cooling (or heating) requirement for your specific house. The type of construction, solar exposure, general climatic conditions such as average temperatures, humidity, and hottest and coldest normal ambient temperatures and desired inside temperture are all taken into account in the more sophisticated versions of the analysis, so there is no "standard", though a rough old rule of thumb was about 1 ton of cooling per 500SF of house. Obviously, this was a WAG only because it did not account for insulation, type of roofing, whether you live in Alaska or Miami, etc. The ACCA manuals do a very simplified form of evaluation to arrive at a "design", which generally will be adequate. OF course, highly precise calculations are not really needed because A/C units generally come in even ton ratings - so if you are at say 2.6 ton requirement you will be getting a 3-ton unit anyway. SEER ratings are not a direct measure of efficiency, but the relative difference between ratings gives you good idea of the unit's relative efficency in using electricity - so a 16 SEER should be about 19% more efficient (so roughly comparable lower electricity bill) than a comparably sized 13 SEER unit. 13 SEER is the lowest efficiency currently allowed to be built for general use, 19 SEER is about the highest efficiency made by pretty much all manufacturers, and about 25 SEER is the highest rated though very pricey shelf-item units, though special construction custom units can reach about 30 SEER. Note however, like any government sponsored rating, much of it is hooey when you get down to it - for instance, SEER ratings are figured based on 80 degree inside air temp and 82 degrees outside, when that is far from the normal case of mid to low seventies inside and high eighties or above outdoors. This makes the absolute SEER rating meaningless, but relative numbers still have meaning in comparing units. Note these efficiency ratings are for conventional air conditoners and heat pumps working in ambient air conditions. Ground sourced Geothermal or lake/river exchange cooling units, though initially more expensive in most cases, can greatly exceed the air-exchange unit efficiencies because they are exchanging heat with cold natural water rather than with a high-temperature outside air, and instead of continually compressing a gas are just circulating cold water. I worked on one geothermal cooling project which had almost infinite efficiency, which of course makes no sense - but the only power was for sensors and a control valve as the water flow was single-pass under gravity flow, so no power was used to circulate the water.