Friday, March 7, 2014

HOW TO BUILD A SIMPLE PASSIVE SOLAR AIR HEATER PLUS A TEST OF THE UNIT

1 comment:

Cararta said...

Neat

Very simple. Roof overhang and direction the window faces will
of course make a difference.
Even a renter could make and install without
altering any structure.
No need to worry about turning off and on. Just
remove when not needed.

Cararta Skipper Works