Date: 2014-01-13 12:59:52

Heat pumps

Heating

Alternative energy

Energy conversion

Geothermal heating

Geothermal electricity

Geothermal heat pump

District heating

Geothermal gradient

Energy

Geothermal energy

Geology

GEOTHERMAL USE IN EUROPE John W. Lund Geo-Heat Center Geothermal energy has been used for thousands of years in Roman and Ottoman baths and district heating in

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