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Electric Thermal Storage Heaters

0% interest for 12 months financing available

San Isabel Electric members are saving on their utility bills while making their homes more comfortable.

They are reaching these goals by purchasing and financing energy efficiency products and projects from Empower by San Isabel Electric. Click here for offer details, call 719-647-6250, or click the button below and we will reach out to you. Must sign-up before 12/31/22 and San Isabel Electric must be your electric utility. 

Clean and Renewable

Electric Thermal Storage Heaters

Available for SIEA members only

What they are and what they do

ETS is a heating technology designed to store electric heat during the off-peak hours of the day when electricity costs are cheaper, saving you money. A super-insulated storage cavity containing ceramic bricks is charged (heated) to approximately 1,400°F and is stored for use during the on-peak hours of the day when electricity costs are higher. A fan forces air over the heated bricks sending the warm air into the room throughout the day; keeping you at a comfortable temperature while using a minimal amount of electricity. The ETS unit’s surface temperature is also safe for children to be near as it does not harm or burn when touched. When a member chooses to install an ETS unit they become eligible for a special time-of-use rate class, which allows the ETS unit to charge during off-peak times, when electricity is cheaper, and discharge the stored heat during peak times, when electricity is more expensive.


ON-PEAK RATE: $0.149 per KwH OFF-PEAK RATE: $0.076 per KwH (first 1,000 KwH) Power GREATER than 1,000 KwH: $0.062 per KwH OFF-PEAK TIMES SUMMER: (MAY – AUGUST) 11:00 p.m. – 7:00 a.m. WINTER: (SEPTEMBER – APRIL) 11:00 p.m. – 7:00 a.m. & 10:00 a.m. – 4:00 p.m. $30 Access Charge Per Month