Products » Water Heaters » Rheem Marathon Series

Rheem Marathon Series

  • Rheem Marathon Series
  • Rheem Marathon Series

Rheem Marathon Series lifetime electric water heaters feature a high-efficiency design with a lightweight tank that won't corrode. It is the most durable electric water heater ever made.

Marathon

  • The most durable electric water heater ever made
  • High efficiency design and a lightweight tank that won’t corrode
  • 40, 50, 85 and 105 gallon capacities
  • Seamless polybutene tank – impervious to rust and corrosion

Marathon Heavy Duty

  • Available in 85 and 101 gallon capacities
  • .91 - 92 EF
  • The most durable electric water heater ever made
  • High efficiency design and a lightweight tank that won’t corrode

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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-Mimi Swennson

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