Electric Thermal Storage Heaters
0% interest for 12 months financing available
Make the energy-saving home improvements you need now without paying any interest.
To learn more about our limited time 0% financing offer, please call 719-647-6250 or click the button below and we will reach out to you. San Isabel Electric must be your electric utility.
Half-Price Electricity
Homes with an electric thermal storage heater get electricity at nearly half the regular rate! Call us today at 719-647-6250 to learn how off-peak rates can lower your entire home’s electric bill.
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Unlimited $100 Referral Credits
Get rewarded for helping friends and family say yes to ETS! Unlimited $100 referral credits are available for every new completed install! Call us today at 719-647-6250.
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Fuel Switching Savings
Make the switch to electric heat! Free yourself from volatile propane prices by switching to an electric thermal storage heater. Call us at 719-647-6250 to learn more.

Get rewarded for helping friends and family say yes to ETS!
Unlimited $100 referral credits are available for every new completed install! Email empower@siea.com or call us today at 719-647-6250 to learn more. Install must be completed by the end of 2023. The referral must be mentioned upfront. The referral credit will be paid out by check after the installation is complete. No limit on the number of referrals. Members only.
HALF-Price electricity
HALF-Price electricity
Homes with an electric thermal storage heater get electricity at nearly half the regular rate! Utilize off-peak heating with an electric thermal storage heater and save money on our your entire home’s electric bill! Only members who have installed electric storage heating equipment (ETS units), licensed electric vehicle(s), or battery storage unit(s) approved by San Isabel Electric are eligible for the time of day rate.
How it works
The time-of-day rate, also known as time-of-use or TOU, is a relatively simple concept. Rates are lower during hours when demand for electricity is low (off peak), but costs increase during hours when demand is high (on peak). During off-peak hours, member-owners signed up for the electric storage time-of-day program pay:
- $0.076 per kWh for the first 1,000 kWh.
- After the first 1,000 kWh the rate goes down to just $0.062 per kWh.
- There is an additional $10/month access charge, year-round, for member-owners on time-of-day rates.


How Steffes ETS works
Off-Peak Energy
24-Hour Warmth
Set It & Forget It
Products

ROOM UNITS
Ideal for any room in your home. Used as supplemental heat or a direct replacement of electric baseboards or wood stoves.
COMFORT PLUS HYDRONIC FURNACES
ETS-heated liquid distributes wonderful warmth to baseboards, floors and radiators.


COMFORT PLUS FORCED AIR FURNACES
The ETS system is equipped with a variable speed blower that ensures consistent even temperature output through the home ductwork to meet your comfort requirements.
Much More than lower bills
Consistent comfort
Earth Friendly
User Friendly
Clean & Quiet
Built to Last
Superior Service
CLICK HERE for electric thermal storage heater FAQs, User Guides, Selection Guides, and information on how it works.