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A Lifetime of Hot Water with Marathon

August 18, 2020

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?

Rheem MarathonLifetime Warranty

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.

Built for Long-Term Use

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.

Three Sizes Fit All Hot Water Needs

Whether you need a little hot water or a lot, Marathon has you covered.

  • Point-of-Use Water Heater – 15- and 20-gallon
  • Water Heater Tank – 30-, 40- and 50-gallon
  • Thermal Storage Tank – 50-, 85- and 105-gallon
  • Commercial Heavy Duty Tank – 75-, 85- and 105-gallon


See Marathon from the inside.

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