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from Lifehacker

Build Your Own Soda Can Solar Heater

Pin now read later. Who knows maybe it'll spark an idea to build a solar heater for the stock tank: Build Your Own Soda Can Solar Heater. Perfect for heating a Greenhouse or small garage

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from The Warmth Within

Radiant Warmth for Pennies per Day

Solar Heater Diagram. How to build one at Mother Earth News http://www.motherearthnews.com/Renewable-Energy/2006-12-01/Build-a-Simple-Solar-Heater.aspx#axzz2N6tYtYto

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from eHow

How to Make a Solar Panel From CDs

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