Why are geothermal heat pumps so efficient?
Geothermal heat pumps use the ground temperatures as a “source” for heat energy during heating, and use the ground as a heat “sink” during cooling. The earth acts as a giant, free energy battery, providing an endless, renewable source for heating and cooling comfort. Standard heat pumps use outdoor air for heating and cooling. Because the ground temperature is much more moderate and stable than air temperatures, geothermal system operation is much more energy-efficient, especially at extreme outdoor temperatures.
