How Geothermal Works As the seasons move from spring to winter, temperature varies throughout the year. Some climates can vary from sweltering summers to chilly winters; The Hudson Valley included. Did you know there is a fairly constant 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 heat source with an earth loop. This creative technology salvages the sun's heat supplying your home or office with central heating and cooling. Geothermal Heating During the heating cycle, a WaterFurnace geothermal heat pump uses the earth loop to draw heat from the ground. As the system draws heat from the loop it circulates it through a standard duct system as warm air. The same heat energy can also be used for a radiant floor system or domestic hot water heating. Geothermal Cooling Cooling the air is just the reverse process used in the heating cycle. Warm air is driven by the geothermal heat pump into the ground. By removing the warm air, all that is left is cool air circulating throughout your home. There is no cost to heating your water during this process. For more information on how to get started with a geothermal system in the The Hudson Valley area, contact Verdae Geothermal. Start saving on your energy bills today.