How Much Does It Cost to Install a New Furnace?

Leave a Comment - 52


Joseph B. Arrington

Subject: Installed, That Feels Like a Pipe Dream

Our fur ace has been declared dead by two different companies, and their quotes both put out the "don't call us, we'll call you vibe." One is for a low quality, low efficiency gas furnace that can be installed next week, for $4,100. The other is a vague verbal estimate of $2,600-$3,200 for a high efficiency, high quality furnace, in 6-8 weeks. It's mid October, so we're talking late November to mid December, in WV. I'm not even sure what to do.


Subject: Brand Recommendation

Any of the experts that posted you have a brand that is better than the rest out there? Thanks for any feedback. Also, I want to be sure the brand is one that is serviced without needing to get parts that take a great deal of time.

Ms Leona T Weiner

Subject: New Gas Furnace Replacement

November 10, 2015, I replaced the HVAC system in my house. This system was composed of 2 gas furnaces and 2 AC units, for front and rear of my home through Sears. The Kenmore furnaces looked almost exactly like the units that were replaced just newer looking. They don't seem that much energy efficient if any. I paid close to $20,000 for the complete HVAC system, plus this year had to take on a "Masterplan Contract", in the amount of almost $3000/5yrs to cover maintenance and repairs. I don't know if that was a good deal or not, all I know is that I'm in hock up to my ears on this HVAC system.


Subject: don't forget the venting!

I got a new furnace a few years ago and no one told me to make sure to get the chimney vent cleaned and checked that it is the correct size for the newer unit. It may not be necessary to do any upgrades to it, but it is an integral part of the system. As a homeowner, I really didn't know that the venting/flue wasn't really looked at by the people installing the furnace...I made assumptions that inspecting the venting/flue system for proper size, etc., was all part of the process of getting a new unit, when it really isn't.

Mark Jones

Subject: Chimney needs inspection as well

National Fire Code states that the chimney needs to be cleaned and inspected when changing out an appliance. You have to check for any cracks, shifted flues tiles anything that may let carbon monoxide back into the home. Also the chimney may need to be lined for the new furnace to function properly. The size of the outlet on the back of the furnace is not necessarily the size of the piping and liner needed (it is determined by max rating/run/height of chimney). Having the chimney professionally cleaned, inspected and possibly replaced should also be factored in.

Charlotte A. Brendel

Subject: Not vented properly

I had a new furnace (boiler) put in, in October, 2016. It is hot water heat. with old iron floor base heat registers. They vented it out a chimney that is as old as the house (over 100 years old) They did not check to see if the chimney was lined or not. Not knowing anything about it, I trusted their judgment. I don't use my upstairs usually, unless there is company, but I went up to put some Christmas things away and discovered my wallpaper in the front bedroom was completely ruined by black, oily streaks that had dripped down in several places from the top of the chimney area, down to the floor. In the hall-way, it followed the chimney line. In the other bedroom, the heat was so intense that it split the wallpaper and also the wide baseboards were checked and in the corner of the chimney, the baseboards were pulled away from the wall. The people who installed the boiler said it was not their responsibility to check the chimney! (?) They finally came back and re-routed the vent to the outside. it is one galvanized pipe. I asked about another pipe for condensation (not knowing for sure what I was asking about) and was told the pipe that they installed would be so hot it would take care of the condensation. Is that true? Also, I am concerned because the pipe sticks straight out the side of the house and is about 2 feet long with a small cage like cap. If it is hot as he said, my concern is that someone could get burned if they touched it. Any help out there about these things? I wrote a letter delineating everything and the owner said I should get the wallpaper fixed and send him the bill. In the letter I asked if the job was done according to state code and that question was never answered.


Subject: new furnace

I recently had an oil to gas conversion completed due to the fact that my oil tank started leaking. My furnace was most likely 20-30 years old. I got different prices ranging from approximately 12,000-8,000 here in CT. This included the cost of removing the oil tank and old furnace.


Subject: Oil vs Gas

Oil is better than gas. First, a month does not go by where you hear on the news about a house exploding due to a gas leak. This cannot happen with oil. In fact, if you place a lit match in heating oil, it will be extinguished. Second, oil burns hotter than gas. Oil has a higher BTU rating than gas, meaning it takes less oil to heat a home than gas.


Subject: Gas vs Oil

Oil burns dirty, costs more and no you do not read every month of houses blowing up. Does it happen? Yes. That is why the maloderant is added. There is no missing that smell.


Subject: Furnace and boiler installation

Your article is misleading for the Boston area. A drop in replacement for a 8X% furnace in this area will cost over $3k here. A friend had a oil fired furnace installed 5 years ago for $2.8k and that was a great price at that time.

A lot of the houses in this area have steam or forced hot water boilers and they cost substantially more. I had a new Smith wet based steam boiler installed 4 years ago and paid about $7k for it. That was considered a good price at that time, If you were to install a forced hot water modcon boiler it would cost substantially more.


Subject: Shop around

Furnace in rental failed. Called our "service provider," a big local company. Got a quote for $3400 for generic "Carrier" 60k btu, 92% efficiency, installed. Yikes! Shopped around on Craigslist for a furnace guy. Got several quotes in the 1500 range, for lower-quality brands such as Duane and Goodman. Then got a call from another Craigslist guy who quoted $1300 for a Lennox (Aire-Flo) 70k/92. I was skeptical he could even make any money that way. Got all his license and insurance papers and references. Hemmed and hawed. He went down to $1260. Called an older guy who had quoted $1460 for Goodman. The older guy said, I could never beat that; if it's for real, you should go for it. So I went with the lowest bid. He undercut the big company's price by almost 2/3. The unit itself cost $640 (direct from Lennox distributor). He did a beautiful job of the install; was in the house for a total of 4 hours. As he was installing the furnace, he said the water heater looked terrible. That's what the other expensive furnace guy said, too. Unlike the expensive guy, the Craigslist guy did his research and found out the water heater was still under warranty. He's swapping out the old one at Lowe's tonight. Labor cost? $200 plus supplies (estimated at $20). That includes extending the furnace exhaust pipe around the corner of the house b/c my wife didn't like where it exited. Moral of the story: shop around! (This is in the Pittsburgh area, by the way.)


Subject: Contact Info

Would you happen to have his contact info still? Also in Pittsburgh area and need to replace 2 furnaces. Thanks!!


Subject: Replace furnace

HI and thank you for your great your review helps me understand quotes and always shop around..... i'm in the south shore area and i'm in NEED of a good and reliable person to replace my furnace. I bought my house last year, this furnace will not last another winter i need to replace this summer/ fall. Can you provide the person you speak high on your review? i love to shop around and get different quote? by the way

Ron Masury

Subject: An on call furnace & water heater

I purchased this home just over a year ago....the contractor installed a new Navien on call furnace and hot water heater...
The furnace is absolutely worthless...when the outside temp hits 35 degrees, we cannot get the heat needed to warm our 935 sq ft home. I insulated the attic.....installed new storm doors both front and back....had an energy audit and was assured that all the readings were favorable. Last winter 2015 was brutal here in the Northeast...sub zero days, wind and lots of snow. I do not want a repeat of last winter and a no heat situation....I even called Navien and they couldn't help...The installer came several times and told me that because the weather was so cold, it would be impossible for the Navien to provide ample heat.....I visited my neighbors and they (gas furnace heated) had no problem warming their home...I am considering replacing the Navien with a gas furnace and a hot water tank...That is unless I can find a solution to fix my problem...Any suggestions?

David Muse

Subject: 20 years in the business, be careful what you read...

I have been in this business for 20 years. I worked my way up from the metal shop, into the field performing installations and service. I currently spend about 7000/ yr for Workers comp and liability insurance (up to 21,000 income) and then an additional $5 premium / $1000 income after that. Add in my $20000 education, licensure expenses, $6000 worth of tools which last approx 4 yrs, the rising costs of health insurance, ongoing factory training, on and on...
My truck has to average $600/ day just to cover my expenses on a 3 day work week, and many times its tough to get any more days than that. And I am the best in my field.
I do most of the work myself with no storefront and still struggle to find enough work to cover my expenses. I need to make at least $2000 on an install just to keep pace with my bills. Maybe 2 installs per month. If I had 4-6 per month maybe I could cut my price by a little. My prices range between $2900-$4600 furnace only, and add AC for $3600-$5400.
I used to be one of those craigslist guys but I just could not compete with all of the lowballers.
I offer a superior product with services that outpace their cost. I know there are lower priced contractors out there but I spend a lot of time cleaning up after their mess. A bad install can cost a homeowner many thousands of dollars in wasted utilities and shortened equipment life or property damage or health consequences... And they might not even know it. In many cases - "You get what you Pay for"...
And as far as that 4-hour furnace install. -- I call B_ _ _ S _ _ _ ! I am in the home for well over 6 hours, sometimes 10-12 on a typical furnace install. I am not the fastest I will admit... But I know what I'm doing, I work efficiently, and I don't cut any corners. It takes me 3 hours just to connect all the utilities, gas piping, high voltage electric, low voltage wiring, new tstat, setup the unit for proper fan speeds and firing rates, connect all the drain piping, condensate pump and tubing, etc.
There's also duct modifications, sheet metal fabrication, performance testing to verify combustion and airflow,... It's a lot of work. Just getting the old one out without breaking anything or causing property damage or safety issues is a good 2 hour process sometimes.
And I will sleep tonight knowing that I will not be getting a call back from my client because of carelessness or rushing through a job and cutting corners. And that they will be comfortable and happy knowing that they paid a fair price for very, very good service... Better to pay what you should, rather than pay twice what you shouldn't !!


Subject: by experience

Cost will depend on the area and brand of the furnace,It depends, Go to thise webpage : ,you will find a full guide how to select the best furnace with the lowest price.


Subject: New furnace question

I am looking into replacing my furnace and tank this spring before it becomes an emergency next winter. I have hot water radiated heat and it does the hot water as well. Since I want to replace the entire system is it possible to change to Propane? Is there a benefit using propane over oil, other than the price differences?


Subject: furnace and ac

I live in ohio.Needed a new furnace and ac unit.Had estimates from 3k to 6 k.Depending which brand you chose,I chose to buy a rheem 70k btus,a 2 1/2 ton ac compressor,seer 15,plus a new a coil.1300 sq ft of house.bought all 3 units on ebay for 2800.Didnt see the price of 5200 to install for a day and a half of work by contractor.2400 dollars for labor and some copper pipe,plus freon.I thought even 1000 bucks to contractor was fair.But no sale.So I bought the furnace and ac unit myself.Did the work myself,and paid some hvac guy to charge the unit.saved myself 2000 bucks.It passed the inspection and all is good.


Subject: Furnace costs

One thing to look at is if the state, county or city required building permits. If so don't let a contractor avoid doing the project without a building permit. If a furnace is replaced without a building permit where required that is known as an illegal an installation. Illegals work is always cheaper than legal work but may cost you much more in the long run. If a contractor avoids bringing up permits or minimizes permits that's usually a red flag and that type of contractor is not doing you any favors.


Subject: New Furnace purchase

I did a lot of homework and got 5 quotes. I ended up with Lennox SLP 98 2 stage 110 BTU furnace and SL18 SEER 4 Ton AC, humidifier, Merv 11 Air cleaner, and top of line WIFI Thermostat. Paid $10k, with $1k rebate from Lennox. Most quotes were between $11-$13K


Subject: average cost

roughly how much to replace a hot water boiler furnace for a 400 sf house?


Subject: New furnace cost

Had to buy a brand new furnace a few days ago (so I was told by the company). Total came to $11,000. I feel that I was taken advantage of because it was cold weather and I was desperate. I believe I could have found a better price if my old furnace didn't break down.


Subject: Furnace

I'm replacing a 27 year old 100K BTU Carrier furnace. Quotes with installation so far 1800-1950 which includes labor. However I may have to replace the evaporator coil unless they can clean it and find a furnace it fits well on, mine furnace is a downflow (most are upflows) and only 17.5 inches wide which is trickier because of the size and the fact it's a downflow. That can range from another 500-700. At that point might as well replace the AC unit as mine is 11 years old and uses the now banned RD-22 refrigerant. You can't run RD-22 through a new coil that is not RD-22. If I replaced everything (furnace, coil and AC) parts and labor 4600. I'm getting more quotes in the next couple days but this I know this is reasonable. FYI, AC unit would be 3 ton 13 SEER.


Subject: Furnace cost

I just had 3 quotes from different places for a Trane or Carrier, 80 efficient and the prices were all around $2400.00 installed total. I think it was a 60,000 BTU, If we wanted A/C it would be an extra 3000 more.

Birdie Breiner

Subject: Transitioning from an exterior Corn Boiler furnace

Hopefully to gas next year after we get the gas line installed. Any suggestions on brands/cost/time of year to purchase with best prices(guessing spring has the best deals) We have a large home 3800+ sq ft with in floor radiant heat we have successfully heated with corn x9 years. The rec room over the garage has it's own electric heater which heats that space nicely. We eventually would install a gas fireplace to supplement. Also have no central air and figured we should do it at same time although we only need a few weeks out of the year.


Subject: Contractors

My advice would be to ask around, I find the best people via word of mouth. Get yourself at least 3 bids and check the references and reviews of the company. A home that big may require two furnaces and AC units I also think you are looking at a lot of duct work and labor costs. Wouldn't be surprised if the quotes are in the 12-20K range. It's critical that you get an expert to size the equipment and design the duct work. Good Luck.


Subject: New furnace.

I had a new furnace inst. in January of this year. I paid slightly over $3000,00. It has a 3 stage blower and included new thermostat. Its warranted for 10 years.


Subject: Furnace

I am curious, where do you live? In Ontario, the weather may affect that we could not get a price like you did.


Subject: Furnace warranty

The furnace parts are warranted for 10 years. The factory doesn't pay any labor. Also check with your city or county and see if they require a permit, if so make sure the contractor pulled the permit AND the work was signed off. This is more important than you know and could cost you greatly is no permit was pulled and the permit wasn't signed off. If no permit make your contractor pull one at his expense otherwise you have an illegal E installation unknowingly.


Subject: Your furnace

To Jim: Can you please share what brand and model? I am faced with replacing mine right @ this moment.

Quite cold here @ night.



Subject: Service contract

I used to have a service contract on HVAC system. One summer the AC broke and they were not quick to come fix it. Told me it would be over a week to come to the house. Why should they service my AC quickly when with my contract I wouldn't be paying full price for parts and labor. They preferred serving those w/o contracts because it meant more money for the company. I assumed with a contract, I'd get priority service but that wasn't the case.


Subject: Cost of HVAC Installation

We just had a new 60,000 BTU gas furnace and 2.5 ton AC unit installed. The cost was $6,200 for both. And the contractor has submitted rebates for us which will total $1,000 back to us from the state and utilities companies for installing high efficiency units.


Subject: Am I'm paying too much

Im getting 2 new furnaces and air units installed maker trane 14 seer one 3.5 ton and one 4.0 ton is 11500.00 a good price for these units and labor

Tom Ripp

Subject: Are you paying too much?

You should consider installing geothermal. It is the most energy efficient way to heat and cool the house. Over the lifespan of the equipment, geothermal will typically save the homeowner lots of money (saves the most compared to oil or propane heat). Geothermal has a COP (measure of heating efficiency) of approximately 3.5 to 5.5, and SEER ratings as high as 37 compared to the 14 you've stated. The initial costs are higher but while there are still incentives including 30% tax credit from Federal taxes through 2016 the price is not prohibitively higher than conventional replacements. Additionally, geothermal eliminates the hazards of having combustion sources in the house reducing fire risks (my oil furnace had burned through the firebox but fortunately it was caught before something worse could happen) and reducing carbon monoxide poisoning risks.


Subject: Furnace cost

Cost will depend on the area and brand of the furnace,It depends, Go at this website furnacecost.weebly dot com you will find a full guide how to select the best furnace with the lowest price.

Josh Ebner

Subject: Picture questions

The drains in the picture look like they snake across the floor? I thought that furnace should be B-vent? And is that a humidifier cut into the cased coil? I'm an HVAC contractor on Long Island. I can contribute a picture of how we install here.


Subject: Furnace

Is it illegal to install anything but high efficiency furnaces? Our old furnace in an unheated garage was replaced with a 95 per cent efficiency unit which has tubing and drains, which can freeze in the winter. Now the tube is leaking.


Subject: by experience

Cost will depend on the area and brand of the furnace,It depends, Go here you will find a full guide how to select the best furnace with the lowest price.

Lou V

Subject: furnace cleaning - legit or scam?

When a company advertises "cleaning" of a furnace for 29.99 or even 59.99 can I expect a real cleaning or are they just looking for an opportunity to get inside the house and propose a deal?

Nathan gillespey

Subject: Small possibility

It is possible that companies may clean hvac for small cost. Chances are it isn't a full clean always ask for details before scheduling. I work for a company that does this type of work and the costs even at our cheapest prices are more then $60.


Subject: Gas Furnace

Due to our County elected officials, they are now doing what most of us wood burners knew would happen sooner or later. That being, about 1 - 2 years from now, we will not be allowed to burn any type of wood stoves or pellet stoves. I have a 30x40' shop which I have been using one of the best wood stoves available, putting out, at the max, 1.76 grams. This keeps the temp. in my shop, on average, 65-70 degrees during the coldest winter months. With the size of my shop, what would be a great furnace that is about 90% efficient? I then have to factor in having the gas company run the gas line 210' from the street to my shop. Would like a gas furnace that would blow the heated air "downwards."

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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.