marathon water heaters

Only Marathon offers the one thing you're looking for in a water heater.... Everything!


Roseau Electric Cooperative offers Marathon Water Heaters.  These water heaters are available though a contractor.  We have 50, 85 and 105 gallon water heaters in stock, but they are also available in other sizes by special order.  Along with being energy efficient, you can also receive our off-peak rates when you purchase and install the 105 gallon water heater.  Call your Member Services Department for more details.

Long Life

  • Lifetime Limited Tank Warranty Available (Registration required with Rheem)
  • Parts warranted for 6 years from date of manufacture.
  • The seamless, blow-molded polybutylene tank is impervious to rust and corrosion!
  • Multiple layers of filament wound fiberglass give the tank unmatched strength.

Energy Efficiency

  • Envirofoam® insulation is free of ozone depleting CFC's and HCFC's so it saves energy.
  • Pipe Wrap Energy Kit is included to reduce heat loss form plumbing lines.
  • Durable
  • 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.


Roseau Electric Cooperative is committed to providing its member-owners with low-cost, high quality, safe and reliable electricity with friendly, efficient and knowledgeable service.


Contact US

For 24-hour outage repair, call toll free 888-847-8840.

Roseau, Minnesota

Office: (218) 463-1543

      FAX: (218) 463-3713

© 2017 Roseau Electric Cooperative. All rights reserved.