How Often Should I Flush My Water Heater?
3 pros!
Manufacturers recommend getting your water heater flushed annually, but what does “flushed” really mean?
And do you really need to flush it that often? Read on for some tips from service provider experts.
What happens when a contractor flushes my water heater?
A service technician attaches a hose to your tank, empties it into an approved drain, then fills the water back up. In the process, they clear out sediment and other buildup inside the tank and provide a clean and clear surface for heating water. In most cases, they will clean and inspect rods, ventilation and other important parts.
Why should I get my water heater flushed?
Much like changing your car’s oil, your water heater needs regular maintenance for top performance. A water heater flush clears out sediment and minerals, such as calcium and lime, that could impede your heater’s performance.
“Sediment builds up in the tank, usually at the bottom, and that insulates it from the flames that are pounding on the bottom of the tank to heat the water,” says Steve Hyde, owner of Washington Water Heaters in Bellevue, Washington. As a result, he says, the heater works harder and requires more time and energy to heat the same amount of water.
How often should I get my water heater flushed?
Most manufacturers recommend flushing your water heater at least once per year. Tosha Disedare, project coordinator for Texas Water Heaters in in Pflugerville, Texas, says her company sends yearly reminders to clients because the yearly flush is so important.
The need for flushing depends on water quality and region. For instance, Hyde says he rarely needs to flush water heaters around Seattle because it has some of the cleanest water in the nation, but heaters in areas even 50 miles to the east need to be flushed every year. The harder the water, the more likely you’ll need a more frequent flush. Overall, it’s a good idea to stick to the manufacturer’s recommendations unless your trusted service provider says otherwise.
What can happen if I don’t flush my water heater?
In addition to decreased energy efficiency, leaving sediment to build up in your heater can lead to serious problems. “Once it gets into the tank and piping, you might see sediment come out of your faucets,” Disedare says. “And in Texas, dirt daubers (wasps) and moths can build nests in your piping, and that leads to serious problems.”
Over the long term, sediment buildup causes even more harm. “Over the course of two to five years, you can lose water pressure or have a pipe burst,” Disedare says. “With enough sediment buildup, your tank can just stop working.”
How much does a water heater flush cost?
Texas Water Heaters charges $99.50 for a flushing job. Most water heater flushing jobs will cost in the $80 to $100 range, water heater contractors say.
Do I need to flush a tankless water heater?
Yes, Disedare says. Though tankless water heaters don’t hold the large amount of water typically found in traditional tanks, the pipes and interior parts still require cleaning and maintenance.
Disedare says Texas Water Heaters runs water through the pipes to clear out scaling and sediment, and cleans the fans, filtration, venting and other crucial parts. It tends to take longer, so her company charges $175 for a tankless water heater flush.
What are the downsides of flushing a water heater?
None. While a flush may break away sediment that may be blocking a leak, that much sediment could have caused the leak in the first place and is a sure sign the heater needs to be repaired. The damage caused by the sediment isn’t worth the advantage of blocking the leak.
