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01 September 2005

Geothermal Heat Pumps : ENERGY STAR

more from the Smart Home show

4' below the surface, earth maintains constant temperature between 50-60 degrees (depending on location)
geothermal heat pump for heating and cooling
uses liquid-filled tubes buried in earth
works a lot like a refrigerator
much more efficient than air-based heat pumps
70% of the energy used is renewable