The primary difference between air source heat pumps (ASHPs) and a geothermal heat pump (GHP) is that the ASHP moves heat to and from the air while a GHP uses the ground to find or deposit heat.
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If you're buying a heat pump, you no doubt want to be armed with the right questions to make an informed decision. In Indiana, we have cold winters and hot summers, so you're going to want a system that performs well throughout the year.
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Geothermal heating and cooling systems are the most energy-efficient home comfort systems you can buy. Rather than burning fossil fuels for heating or using ozone-depleting refrigerants for cooling, a geothermal heating and cooling system uses renewable (and free) heat from the earth.
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