Slr3 Through Window Easy Insert Solar Hot Air Machine- Easy Installation - Makes an average of 95 cents of heat per day - that's accounting for clouds 50% of the time in NH!

Fits out South Facing window. Grabs sunshine for free heat!

Two sizes: fits a 28 inch window, or a 33 inch window or larger window.

Complete with baffles that open to let just warm air in.

Sun heated air rises into your house or office through the window! No fans, no plugs.

Typical savings for NH given that we have sun about 53% of the days when heat is desired - would be about $180/year of free heat when used in heating season.

Picture having one of the greener homes around...
This is by far a best deal going! You can compare other Prices online.