Reg. tanks -- 5 years for leaking tank -- 2 years on gas valve --
I have no experience in this, however A. O Smith claims that there brand of gas water heaters are the most efficient. They also offer a hybrid water heater.
The manufacturing company that makes AO Smith water heaters is simply named A. O. Smith Corporation. They are one of the leading residential water heater companies in the US.
AO Smith WPC,
Yes , Rheem and state
There are several different companies that offer lifetime guarantees with their water heater installations. Companies such as, Home Depot, Whirlpool Water Heaters, and Sears all offer lifetime guarantees on their water heaters.
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AO Smith specializes inn commercial and residential water heaters. They carry many different brands of water heaters including State, American, Reliance, GSW, John Wood, Takagi, and their own brand.
AO Smith water heaters are available for purchase from a number of licensed plumbing contractors throughout the United States. One can visit the AO Smith website and enter a zip code to find a contractor that is located nearby. One can also purchase these water heaters on Amazon.
Home Depot, an illustrious hardware store, is known for selling any product to help the value of a home. Home Depot sells water heaters for its customers everyday use. Home Depot sells both gas and electric water heaters from a 30 gallon to a 80 gallon capacity. The water heater may also be tank, or tankless. If desired, Home Depot offers 6-year, 9-year, and 12-year warranties on their new water heaters.
Home Depot offers tankless hot water heaters for around $1000 depending on the specifications you need. These will need to be professionally installed.
There are several websites that offer hot water heater reviews. Consumersearch.com offers several reviews, as does comparethebrands.com (40 gallon only). Others are highperformancehvac.com and consumerdemocracy.com. Consumer Reports has a lot of information, but no real reviews. You can find reviews of hot water heaters by visiting www.consumersearch.com/water-heaters/review. Amazon.com and homedepot.com also offer reviews of individual hot water heaters.
Yes, the tankless water heaters do cost more than the normal water heaters because tankless water heaters are designed to supply hot water only when needed unlike normal ones.