Dear Jim: I would like to use some free solar heating in a south-facing kitchen. I cannot afford to have a system installed professionally. What type of simple solar heater can I build myself for one ...
Open Source Low Tech on MSN
The $50 Solar Water Heater — How It Works and How to Build It
Exploring how the $50 solar water heater works and how you can build it yourself for affordable home heating. #SolarHeater ...
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