Posted by George Marsh on March 05, 2014 at 11:56:38 from (173.85.210.233):
In Reply to: Solar heating? posted by 55 50 Ron on March 05, 2014 at 09:58:58:
Solar heat only works when the sun shines. In the middle of the winter I have more cloudy days than sunny. Less than 8 hours of usuable light.
I do use passive solar in house. Most of my windows are on the south side. Feels good when the sun is out, not so good the rest of the time. I think it may be counter productive, the little heat gain in the day may be off set by the heat loss throught the windows at night. The boss like it for her flowers. Not to mention it helps with winter cabin fever.
My pole barn is about 11 degrees warmer in the winter when the sun is out. Barn is a blue/gray, no insulation, Sun warms barn through metal.
I think painting the roof and south side of your barn may be the cheapest and best way to collect solar energy.
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