Friday, March 7, 2014

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

1 comment:

  1. 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

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