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Did You Know?
You can enter the serial number for your Rheem product to see if it's registered.
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Standard gas tank water heaters last an average of 10 years, and standard electric water heaters may last a bit longer. However, if you’re looking for a water heater that can last longer, would you believe that there is a water heater you won’t need to replace?
A Rheem® Marathon® Electric Water Heater will be the last water heater you’d need to buy for your home. If you register your product online, its 10-year warranty is upgraded to lifetime at no additional cost.
Its unique construction not only gives it a unique capsule-like shape, it brings benefits. The unit has a seamless, blow-molded polybutene inner tank that will not rust or corrode. The polyethylene outer tank resists dents, scratches and salt air.
Whether you need a little hot water or a lot, Marathon has you covered.
See Marathon from the inside.
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