Solar Air Heater Designs

Here are the two air heater designs I like the most. I would like to thank Builditsolar.com for all the great solar designs.

Greg's Solar Air Heater Design

I like Greg's design because it is low cost and easy to build. Builditsolar.com says you can build a similar air heater for $2 a square foot.

Modified Can Solar Air Heater

This design is similar to the popular cansolair design. It uses recycled aluminum cans that look quite nice when put together.
http://www.freeweb.hu/napenergia/gyak/szp/sztgyi_en.htm