Geothermal heating and cooling systems take advantage of the natural, even temperature several feet beneath the Earth's surface. A loop of pipes is installed underground, which circulates water. In the winter, these water pipes absorb the relative heat beneath the earth and deliver it to a heat pump, which warms your home. In the summer, the reverse of this happens because the temperature underground is cooler than the outside air. This year-round heating and cooling provides excellent energy efficiency, because your comfort system does not have to work so hard to deal with the extreme temperatures of our area.