"I used only one-fifth as much power to heat my studio as usual this past winter."

Susan Bloomquist

"Installing a SunnyTherm® really helped warn up my kitchen in the afternoon and evening

  Mary Jarrett


"Now I can keep my farm shop comfortable on a sunny day without using my expensive electric heaters."

                  Gary Pritcher

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                Boulder Home And Garden Magazine 

    SunnyTherm® designer, Gary DuC​hateau, has a background in construction management, manufacturing, equipment design, and business administration. Years of living in a rural area with brutal winters made him acutely aware of the cost of heating and the unreliability of utilities in some areas. He and his neighbors often struggled with huge propane bills.

     These experiences, and a strong desire to find an eco-friendly affordable alternative, led Gary to experiment with various alternative means of heating a home, shop, office, greenhouse, cabin or other structure. The result was the design for the SunnyTherm® solar air heating system.



Sunnytherm Solar Heating Systems Heat Storage Banks

Our mission is to make green heating technology available at a price real people can afford. If we are going to reduce our dependence on foreign oil and energy monopolies, we must create green technologies that are simple enough to be accessible to the general public.

solar heating made simple

Check out our recent press

"We still, after 3 years have not purchased any new propane. As long as the sun is out, our 1,300 sq. ft. home is toasty. The solar furnace runs way past dark. Glad we put the extra in."

  Jeff and Sandi Thurston


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