Passive Solar Air Heater Heating System Alternative Energy
This is a video of the Passive Solar Heating System in use at http://www.envirosponsible.com in Whitby, Ontario, Canada.
It provides a great deal of heat, and the installer, Chris, will be making it more effecient by adding a second computer fan to push the warm air at the top, painting the inside better and taping the duct work. Also, the duct work will be directed into the office where the door can be closed and used in a smaller air mass.
Here is the video on Youtube: