Passive solar air heating is considered the most cost-effective renewable energy utilizing the energy from the sun by capturing it with an absorbing medium. It is the only “free” heating source out there. The only downfall is it doesn’t work at night. Plus it’s a great recycling and re-purposing project because you’ll be using empty aluminum pop (soda and beer) cans which is how the heat will be generated from the sun.

These are among the best applications out there on the web you can model yours after…

7 DIY Pop Can Solar Heaters

Visit: EZ Battery Reconditioning To Learn More here: http://www.survivalistdaily.com/ezbatteryreconditioning