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Water Heaters

"Lifetime" Warranty - New Policy:

Effective November 1, 2015, all new Marathon water heaters have a 10 year warranty unless the owner registers the unit with Rheem to qualify for a lifetime warranty. Registration must be completed within 90 days of installation.

After registration, the 50 gallon units will have a lifetime warranty. The 85 and 105 gallon will have a 10 year warranty in the commercial setting and a lifetime warranty in the residential setting.

Register your unit here:

Long Life:

The seamless blow molded polybutylene tank is impervious to rust and corrosion. Multiple layers of filament wound fiberglass give the tank unmatched strength. The tank is designed, built and warranted not to leak "for as long as you own your home."

Marathon Water Heater

Energy Efficiency:

Evirofoam insulation is free of ozone depleting CFC's and HCFC's so it saves the planet and saves energy.


Recessed drain valve is out of the way of brooms and scrubbers.

Tough molded outer shell resists dents and scratches. Bowl shaped bottom allows more complete sediment draining.


Factory installed temperature and pressure relief valve for greater value and security. Conduit between control boxes facilitates wiring for "Off Peak" use. All plastic tank eliminates the need for an anode rod, preventing potential odor problems.

Pricing effective January 1, 2016:

  50 gallon 85 gallon 105 gallon
Cost: $1025.70* 1159.60* 1300.00*
Rebate for Central Electric Members: $  450.00** 765.00** 765.00**
Cost to Central Electric Member: $  575.70 394.60 535.00

*Price does not include applicable tax or installation; Price available while supplies last and is subject to change
**To qualify for the rebate, members must meet the requirements below

  1. The new water heater must be installed where it will be used daily
  2. The new water heater must be installed at a location served by Central Electric
  3. The new water heater must be hooked to the load management program for a minimum period of 4 years
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