Digital thermometer fan switch. Fan not included.

Left side and right side thru the wall Model 1536. Sold in pairs. Order in between modules in pairs 2,4,6,8...etc.

The Model 1500 "High Heat" Series Solar Air Heater is a Module Array Assembly for Commercial and Residential application. High Heat output with Patented "Step-Wise Heating Technology".

The Model 3036 is 30 inches wide by 36 inches tall. These two Model have the 4 inch entry and exit hole in the back side of the assemblies.

Solar Air Heater Profile Series 6-Panel Array.

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.

This kit is complete with (2 ea.) custom 8" x 8" wall vents with washable filters, metal wall duct mounting assembly. 4 inches O.D.

The core of the 1548 is the "U.S. and Canadian Patented Solar Air heater Step- wise heating Technology. Each Solar Window Air Heater insert has been specifically designed to capture the suns energy, converting energy to heat.