Solar heat collecor!

[bobberguy]

This is the type of heat collector I want to use in my green house. I will have the collector floating in a 50 gallon drum of water hoping that it will raise the temp. 10 degrees above what it usually is in the winter which is about 40! The extra heat will keep the greenhouse from freezing during a cold spell!
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solarcooking.org/sbcdes.htm

[mastercatter]

That is neat. Could be used for camping or when the power is out!

[bobberguy]

Tried the styro foam containers I bought for the solar collector. They did not work because the water seeped through them! I guess I will put a plastic bag inside the styro foam next time!