One of my co-workers saw a video on YouTube about a popcan hot air heater so he decided to make one himself. It worked so well that he decided to make a video of it. Then the local media caught wind and thought they could make a story of it. This video is the result of condensing 90 min. of videotape into a new clip. He spent $500 to make it but should make that back in a few years. A large part of the cost was the plate glass. It would have been more effective except for the fact that the garage next door blocks part of the exposure to the sun. Next project is a solar water preheat for the house.

http://regina.ctvnews.ca/video?clipId=840775

PS today, we are digging out of another 20cm of snow and -30* temps.