Quote:
Originally Posted by Xringer
But, not for radian heating, but to scavenge the 60F slab heat. It's free geothermal heat!
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According to this map:
The yearly average heat for the earth where you live (at 25 foot depth) is about 50F degrees.
That would imply that the '60F degree free geothermal heat' is actually coming from heating your home, going down into the earth, not up from the earth.
You could extract heat from a 50F floor to heat your basement, but your floor will get pretty darn cold when you do it.
But hey, why not give it a try!!?
-AC_Hacker