How Geothermal Works We all know that East Tennessee homes are acceptable to varying temperatures during the year. Some climates can see the extremities that summer and winter hit us with. There is a dependable source of temperature that you can put to good use; just a few feet under the earth's surface. How is that possible? The sun infuses the Earth's crust with its heat energy. Forty-seven percent of that energy is cumulated in the ground as heat. WaterFurnace geothermal systems tap this heating potential using an earth loop system; gathering this free heat for your home. This cutting-edge technology uses the sun's heat that the earth has conveniently accumulated to condition your home or office. Geothermal Heating During the heating cycle, a WaterFurnace geothermal heat pump uses the earth loop to draw heat from the ground. As the system pulls heat from the loop it circulates it through a standard duct system as warm air. The same heat energy can also be utilized for a radiant floor system or domestic hot water heating. Geothermal Cooling Conditioning air is just the reverse process used in the heating cycle. Warm air is pushed by the geothermal heat pump into the ground. By removing the warm air, all that is left is cool air dispersing throughout your home. Heating your water during this process is "free". For more information on how to get started with a geothermal system in the East Tennessee area, contact Geo Pros of Knoxville. Start saving on your energy bills today.