DIY Home Repair Forum: Green Energy and Sustenance Living
08-09-2011, 06:34 AM
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Replies: 8
Views: 2,022
Solar air heater
here is one manual for building solar air heater (http://solar.freeonplate.com/solar_panel_DIY.htm). It can not produce electricity, but it has much more efficiency, and you can use it for home...
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