DigestGround Source Heat Pumps ("Geothermal") for Residential Heating and Cooling: Carbon Emissions and EfficiencyBy John Straube Building Science Digest 113: last updated 2009/10/19 |
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There has been a recent surge of interest in Ground Source Heat Pump (GSHP or “geothermal” or GeoExchange™) systems for residential projects. Outrageous claims and misunderstandings about how they work are common. This digest provides some basic information and definitions, offers advice on how to compare the carbon emissions, and defines the climate regions and operating conditions for which GSHP systems are best suited.
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