Geothermal HVAC
Geothermal Heating and Air
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Geothermal energy is the only place where the Law of Conservation of Matter and Energy (which says energy can neither be created, nor destroyed) doesn't always hold true.
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This 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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