Marathon Electric Water Heaters - Rheem Water Heaters
MarathonElectric Water Heaters

The last water heater you’ll ever own.

Rheem Marathon water heaters are warrantied for life and built to last for as long as you own your home. While a traditional steel tank will erode and potentially rust over time, Rheem Marathon water heaters are manufactured with polybutene which is impervious to rust and corrosion, and is one of the many reasons why this water heater may be the last one you’ll ever need to buy.

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    • The most durable electric water heater ever made
    • High efficiency design and a lightweight tank that won't corrode
    • Seamless polybutene tank – impervious to rust and corrosion
    • 30, 40, 50, 85 and 100 gallon capacities
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      Marathon Point-of-Use
      • Featuring the same unique design as the Marathon, but in smaller capacities
      • Ideal for condos, cabins and light-duty commercial applications
      • 15 and 20 gallon capacities
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        Marathon Thermal Storage Tank
        • 50, 85 and 105 gallon capacities, 2 port and 3 port configurations
        • Specifically designed for installation as a thermal storage tank
        • Large water connections
        • Tank – impervious to rust, corrosion