Build ItDIY Passive Solar Water Heater

DIY Passive Solar Water Heater

Learn how to make a diy passive solar water heater out of two 55 gallon drums. The heater is similar to the one pictured which used an old water heater. This build uses gravity to fill the heater with cold water and the sun to heat the water to 150 degrees. See all the instructions on Ehow.

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Wikimedia commons

 

http://www.ehow.com/how_4798570_passive-solar-water-heater.html

 

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