How Geothermal Works As the seasons move from spring to winter, temperature varies throughout the year. Some climates can range from scorching summers to chilly winters; West Chester 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 retained in the ground a few feet under the surface. WaterFurnace geothermal systems tap into this free resource with an earth loop. This ingenious technology recovers 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 distributes it through a traditional duct system as warm air. The same heat energy can also be used for a radiant floor system or household hot water heating. Geothermal Cooling During the cooling mode, cold, conditioned air is circulated throughout the house by doing the exact opposite as the heating process. Heat is not extracted, instead it is pushed into the ground. The warm heat is pulled from your home and transferred back into the earth loop. Your hot water heating can be fueled by this process as well. For more information on how to get started with a geothermal system in the West Chester area, contact Brandywine Valley Heating & Air Conditioning. Start saving on your energy bills today.