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Water Heaters

In the best interest of our members, Renville-Sibley exclusively carries Marathon Water Heaters with a LIFETIME Warranty. For new home construction or members converting from fossil fuels.

Marathon Water Heater
Heating your water with an electric water heater is simple and efficient. Marathon water heaters are non-metallic tanks which means your water heater will NEVER rust out. The Marathon has at least two inches of polyurethane foam insulation around the entire tank - top, bottom, and sides!

An electric Marathon water heater offers many advantages over propane or natural-gas units. First of all, the water heater is made from polybutylene. The tank will never rust out and will look good even in a damp environment. The water heater is bowl-shaped on the bottom to permit complete drainage of scale and sediment.
An electric water heater is simple to install because it requires no gas piping or chimney. Renville-Sibley offers incentive rates to make electric water heating your safest, most efficient water heating source. Marathon water heaters come in various sizes and capacities to meet your every need.

Water Heater Rebates

Renville-Sibley offers the following rebates on Marathon electric water heaters:

  • $4.50 per gallon rebate on a Marathon Lifetime Warranted water heater
  • $3.75 credit on your monthly electric bill
  • Cost to purchase a 105-gallon Marathon water heater after rebates -  $422.50 plus tax 
  • Cost of a 105-gallon Marathon water heater for new construction or fossil fuel conversion - $322.50 plus tax
  • Must be connected to the load management system.

Visit the Marathon Water Heater web site or contact our office for more information.



103 Oak Street
Danube, Minnesota 56230
(320) 826-2593
(800) 826-2593 (MN & SD)