OCTOBER SALE -SAVE $20.00 OFF $189.97 An evolution in design, the new Model Extreme Heat solar window heater has set a new industry standard. The core of the Extreme Heat is the aluminum "U.S. Patented Solar Air Heater profile.

U.S Patent 7,434,577 Canadian Patent 2,643,573 A solar window heater works by circulating air from inside a room through the system mounted on the interior window sill.