DIY HOW TO BUILD HOMEMADE 12x15 FT AIR SOLAR PANEL FOR $400 FOR OUR 30x80 SHOP IN OPERATION MADE OUT OF USED WOOD, USED POLE SHED STEEL, 1/2in FOIL FACED INSULATION, 6 MIL PLASTIC ( SHOULD BE 6 MIL UV RESISTANT GREEN HOUSE PLASTIC ), BLACK PAINT, 16in B
