Ranging in size from 20 to 80 gallons (or larger) and fueled by electricity, natural gas, propane, or oil, storage water heaters work by heating water in an insulated tank. Storage water heaters are by far the most common type of water heater in use in the U.S. Often you can substantially reduce your hot water needs through water conservation efforts (see “Conserve Water”). Look for a water heater that satisfies your hot water needs and uses as little energy as possible. Whether you’re replacing a worn-out existing water heater or looking for the best model for a new house you’re building, choose carefully. The energy savings alone could pay for the new water heater after just a few years, and you’ll be happy knowing that you are dumping fewer pollutants into the air and less money down the drain. In fact, it often makes sense to replace an inefficient water heater even if it’s in good shape. If it’s in bad shape, replace it now before it starts leaking or the burner stops working. If yours is up there in age, have your plumber take a look at it and advise you on how much useful life it has left. Most water heaters have a lifespan of 10–15 years. If possible, replace your existing water heater before it fails. This is particularly important with newer energy-efficient technologies. Figure out the proper size for your household, not just in terms of gallon capacity, but first-hour rating as well. A much better approach is to do some research now.Įxplore the options and decide what type of water heater you want - gas or electric, storage or demand, stand-alone or integrated with your heating system, etc. You’ll have to rush out and put in whatever is available, without taking the time to look for a water heater that best fits your needs and offers real energy efficiency. That will happen at the worst possible time - like just after guests arrive for a week-long visit. If you’re like most people, you’re unlikely to go out looking for a water heater until your existing one fails.
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