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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Today's Featured Article - Hydraulics - Cylinder Anatomy - by Curtis von Fange. Let’s make one more addition to our series on hydraulics. I’ve noticed a few questions in the comment section that could pertain to hydraulic cylinders so I thought we could take a short look at this real workhorse of the circuit. Cylinders are the reason for the hydraulic circuit. They take the fluid power delivered from the pump and magically change it into mechanical power. There are many types of cylinders that one might run across on a farm scenario. Each one could take a chapter in
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