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Marathon 20 Gallon Electric Water Heater

Marathon 20 Gallon Electric Water Heater

SKU: StorMaxx-ME-020 | 4.00 (2 ratings)

4.00 out of 5
(2 customer reviews)

1,738.00 $869.00

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Product Details & Specifications

  • Brand: Rheem-Ruud
  • Brand: Rheem-Ruud
  • Model: M20
  • Capacity: 20 gallons
  • Element Size: 2000W (120V)
  • Dimensions: 23 1/2 x 34 1/2
  • Tank Weight: 43 lbs
  • 1st Hour:
  • Parts Warranty: 6 years
  • Tank Warranty: Limited Lifetime Warranty

Marathon 20 Gallon Electric Water Heater

Silicon Solar in conjunction with Rheem-Ruud is now offering Rheem Marathon tanks for the convinience of our Customers.

Model Capacity
(US Gallons)
Energy Factor Element Size
(diameter x height) (2)
Tank Weight
1st Hour
M20 20 N/A 2000 watt (120volt) 23 1/2 x 34 1/2 43 lbs N/A

Rheem Marathon™ 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. The unique award winning construction of the seamless plastic tank means a product that is stronger, of higher quality, and longer lasting. An abundance of CFC and HCFC free foam insulation from top to bottom results in the most energy savings than any other water heater in its class. Stainless steel elements resist lime buildup and operate more efficiently. These features along with the BEST warranty mean the BEST value for an electric water heater in the industry! The tank has a limited LIFETIME warranty and the parts have a six year warranty. Rheem Marathon™ lifetime electric water heaters are designed primarily for Residential use providing years of hot water for you and your family.

The Marathon electric water heater offers these advantages:

    • Technologically advanced design is clearly differentiated from short lived steel water heaters.
    • It’s the most durable water heater made with a warranty to match
    • Envirofoam™ insulation is completely free of CFC and HCFC ozone depleting gases. Marathon leads the way in environmental friendly manufacturing design and operation.
    • Tank comes complete with a factory installed vacuum relief valve, ¾ brass tee, and ¾ brass nipple for easy professional installations.
    • Replaceable brass drain valve
    • All wiring run in conduit for easy control wiring
    • Seamless blow molded polybutene tank with no anode rod required for a corrosion free life
    • High temperature commercial-grade diptubes for greater durability
    • The filament wound fiberglass outer tank is designed to be more flexible and withstand more pressure than conventional tanks
    • Our unique high temperature dip tube is offset from the concave bottom creating a whirlpool effect which helps prevent sediment build-up
  • Every tank includes 4′ of pipe insulation for even greater savings.

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4.00 out of 5

2 reviews for Marathon 20 Gallon Electric Water Heater

  1. 4 out of 5


    We just wanted you guys to know you made us very happy

  2. 4 out of 5


    Its wonderful to use Silicon Solar products. Amazingly good products.

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P: 1.800.786.0329


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Silicon Solar
2917 St Hwy 7
Bainbridge, NY 13733

P: 1.800.786.0329

Contact Silicon Solar