Skip to main navigation.

Residential Water Heater Program


Marathon Water Heater Program

Sioux Valley Energy offers an unbeatable residential water heater program.  We sell Rheem Marathon water heaters to members for $400 (plus applicable tax) for any size--50, 85 and 105 gallon.  The special upfront purchase price of the water heater is in lieu of a monthly load management water heater credit or special rate.  The Marathon is made out of a durable polyethylene jacket and withstands rust, denting, and corrosion. The water heater carries a lifetime tank warranty/6-years on parts for the original owner or a 10-year tank/1-year parts for rental/leased applications that have one water heater connected per unit/structure (only a 5-year tank warranty if one water heater is connected to multiple units). The water heater converts to a 10-year tank warranty if the home is sold.  The water heater must be connected to our load management program for the lifetime of the water heater, which also complies with the Department of Energy regulations. Sioux Valley Energy does not deliver or install water heaters.  The water heater must be paid for at the time of pick up.  Water heaters are available at the service centers in Colman, Brandon and Pipestone.  Please contact the Energy Services Department at 1-800-234-1960 to place your order.  Orders can generally be picked up on the same day of the order.   After the water heater is installed, the member must contact the cooperative to install/maintain the load management equipment.  Sioux Valley Energy's wiring department does warranty and repair work should an issue ever arise. 

The Marathon water heater program is only valid for residential domestic water heating purposes and is not available for commercial or agricultural applications; however, the Westinghouse water heater can be sold for non-residential use

The load management infrastructure will soon be available in Rock County for the territory of former Alliant Energy customers.  As soon as it is, those members will be eligible to purchase residential water heaters under this program.

The load management programs allows our power supplier to shift demand during peak usage on the system.  Due to the larger capacity and efficiency of the water heaters, most members are not inconvenienced by participating in the load management program.  

Rheem Marathon Water Heater Warranty:

Single Family Dwellings:

  • Water heaters installed in a single family dwelling and owned by the original purchaser carry a lifetime tank/6-year parts warranty. 
  • The product must be registered to qualify for the lifetime tank warranty. Failure to register the product reduces the warranty to   10-year tank/1-year parts.
  • The warranty for a single family dwelling converts to 10-year tank/1-year parts upon the sale from the original purchaser.
  • The warranty conditions are subject to the proper installation of the water heater according to Rheem’s guidelines.

Residential Rental Properties:

  • Water heaters installed in a residential rental property carry a 5-year tank/1-year parts warranty.
  • The warranty conditions are subject to the proper installation of the water heater according to Rheem’s guidelines.


Water Heater Dimensions

Capacity Width Height to top valve Weight
50 Gallons 23.5" 66.75" 100 lbs.
85 Gallons 28.25" 70.25" 134 lbs.
105 Gallons 30.25" 70.75" 152 lbs


Westinghouse Water Heater Program

The Westinghouse water heater program is a new program for 2018.  It is designed for our commercial and agricultural program but is also available for the residential program if a member has limited space or is needing additional water heating capacity.  This water heater is made of a durable stainless steel tank. It carries a lifetime tank warranty/6-years parts for the original owner and 10-year tank/1-years parts for any leased/rental application. There is no conversion to future owners.  We sell 80 and 115 gallon units for $400 plus applicable tax. The water heater must be connected to load management for the lifetime of the water heater.  Please contact the Energy Service Department to place your order. There is limited in-stock quantities available currently until future orders arrive.

Westinghouse Water Heater Dimensions (heights inlcude the t&p valve):

*80 gallon – 23 ½” diameter x 72 ½" wide

*115 gallon – 26 ½” diameter x 72 ½" wide


Programs can be changed or discontinued at any time.  If you have any questions, please call our Energy Services department at 1-800-234-1960 or email

2018 Residential Marathon Water Heater Program Application

2018 Westinghouse Water Heater Program Application

Powered by Touchstone Energy Cooperatives Logo
Show It and Save Kids Energy Zone 811 Know what's below. Call before you dig.