How a Geothermal Heat Pump Works | This Old House

This Old House plumbing and heating expert Richard Trethewey explains how to capture the heat buried deep in the ground.

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Richard took a homeowner to visit a house that had a ground-source or "geo-thermal" heating and air conditioning system. During the heating season, this type of HVAC system uses a heat-pump to move heat from the ground into the house. In cooling season, the heat-pump runs in reverse, moving heat from the house into the ground.

The geo-thermal heat pump that the homeowner had installed was manufactured by ClimateMaster [https://www.climatemaster.com/].

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How a Geothermal Heat Pump Works | This Old House
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