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Storage Water Heating

Storage water heating is a cost-effective way to meet your hot water needs. Plus it saves you up to 63% on your water heating costs with our special 5.3 cents per kWh rate. 

How Does it Work?

You store a larger quantity of water that's heated by the off-peak controls during an eight-hour, off-peak period (usually 11 p.m. to 7 a.m. - when you're sleeping.)

We base the water heater capacity on the size of your family or business to meet your specific hot water needs for the 16-hour, off-period. See chart below.

No venting is required with electric water heating.


Household Size (persons) Single Tank (gallons) Dual Tanks (gallons)
1-4 80-85 gallons and mixing valve 50 and 50
5-7 105-160 gallons  80 and 80
8-9  200 gallons minimum 80 and 120




Rebates are available for high-efficiency Westinghouse electric storage water heaters.*

  • $500 rebate available for existing off-peak program members who replace their storage water heater.
  • $700 rebate available for members new to the storage water heating program.
  • 0% Financing may be available

*Water heaters must be purchased from ECE and have an energy factor of 90% or greater to qualify.

Offers available to ECE members only.

Printable information sheet

To learn more, call 1-800-254-7944 to speak with an energy expert.

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