This is the first solar air collector I made with Polar Bear Eavesdropper Eavestrough Foam from HomeDepot. Enjoy!

Wow! This one is unique as it uses liquid bubbles to fill the 30 inch double filmed cavity at night to achieve R30 insulation!

We have also collected videos made by others showing how to heat air or water using the sun in the sky. Enjoy!

Simplest Solar Furnace for Cooking and Warming a Room

Home Built Passive Air Solar Heater

Solar Air Heater with Built-in Solar Fan

Solar Modular Heat Storage

Build a Solar Assisted Heat Pump – Plans Available

Solar Powered Air Conditioning