If you are looking for a way to lower your heating bill this year you probably want to look into this Pop Can Solar Heater idea. It is quite simple and is nice since much of the contents of the system is recycled.
" The Cansolair Solar Max 240 consists of a four by seven solar collector (28 Square feet, or 2.6 square meters). Solar Max 240 has 15 vertical columns of cylindrical shape, making the actual surface exposed to the sun greater than 2.6 square meters.The same cylindrical shape allows the Solar Max to receive solar radiation for a longer period due to the angle of incidence of the sun hitting the solar panel. Peak BTU performance was observed during the noon hour period in October 2001 wherein the temp rise was 50 to 54F degrees resulting in a 9000 to 9720 Btu or 2636 to 2847 Watts. Peak BTU performance will actually increase in colder weather due to the rise in temperature between input and output temperature and a lower angle of incidence. The Solar Max 240 has a quick response rate of 8 minutes from the appearance of sun to “cut-in” based on 100 degree F output temperature. Solar Max 240 uses the most conductive black paint available for solar collectors. Solar Max uses a lexan outer cover which allows sunlight in and is resistant to the elements."
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