Inexpensive Solar Heater Made with Disposable Aluminum Baking Pans. Easy to build [no cans to mess with] and very efficient-- nearly 150 degrees produced on a 5 degree day. This video shows the heat at nearly 130 degrees but a couple hours later the hea
![$35 4' x 8' Solar Heater: Made of Aluminum Baking Pans [disposable kind]](https://cdn.mycrafts.com/i/1/4/27/35-4-x-8-solar-heater-made-emds-p.jpg)
