Posted by George Marsh on March 06, 2014 at 18:49:17 from (173.85.210.233):
In Reply to: Re: Solar heating? posted by VaTom on March 06, 2014 at 08:33:07:
I use between 10-12,000,000 BTU's a month in the winter, Dec,Jan,Feb. So how many tons of dirt are you using to make the walls? How large is your other thermal mass?
I have about 25,000 4 pound brick on my house. If the temperature in the summer is 85 in the day and 65 at night, my house will stay at 75 with out air conditioning. I do use a power attic fan because attics get extremely hot.
I think some american indians in Arizona had dirt huts with very thick walls. Same idea, thermal mass to stay warm at night and cool in the day.
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