How Geothermal Works As the seasons change from spring to winter, temperature fluctuates throughout the year. Some climates can vary from sweltering summers to frigid winters; Columbus included. Did you know there is a fairly consistent temperature, regardless of climate or season, just below the ground? The Earth's crust absorbs 47% of the sun's heat (energy) and is sustained in the ground a few feet under the surface. WaterFurnace geothermal systems extract this free resource with an earth loop. This inventive technology reclaims the sun's heat supplying your home or office with central heating and cooling. Geothermal Heating In the heating cycle, a WaterFurnace geothermal heat pump utilizes the earth loop system to extract the heat from the ground. With delivery through a standard duct system, the geothermal system draws heat from the loops and circulates it as warm air. Options are available to use that same heat energy to provide hot water heating and radiant floor heat. Geothermal Cooling In the cooling mode, the heating process is reversed - creating cool, conditioned air throughout the home. Instead of pulling heat from the ground, heat is extracted from the air in your home and either moved back into the earth loop, or used to preheat the water in your hot water tank. For more information on how to get started with a geothermal system in the Columbus area, contact Patriot Air Comfort Systems. Start saving on your energy bills today.