Make a Solar Water Heater for Under $5

Solar Thermal Water Heater For Less Than Five Dollars

Instructables has great instructions for you to Macgyver yourself a Solar Hot Water Heater using refrigerator coils. Apparently, it's so effective that the hot water heater can quickly and easily heat water that will scald you. Now, that's hot!

I'd love to hear about other diy solutions for renewable energy.

Today's Link source: Treehugger