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Geothermal HVAC
by
Humphries Homes
(IC: professional)
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Published February 7th, 2011 1:22 PM
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KMS Woodworks on Feb 07, 2011This is a mechanized version of a passive Earth Sheltered Home...Steady temps of the earth temper the swings. Humphries ...what is the projected ROI on the cost of digging those big holes based on current fuel costs?
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