How Geothermal Works As the seasons move from spring to winter, temperature varies throughout the year. Some climates can vary from fiery summers to chilly winters; Las Cruces 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 underneath the surface. WaterFurnace geothermal systems draw from this free heat with an earth loop. This innovative technology salvages 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 employs the earth loop system to draw the heat from the ground. With delivery through a traditional duct system, the geothermal system pulls heat from the loops and distributes it as warm air. Other choices are available to use that same heat energy to provide hot water heating and radiant floor heat. Geothermal Cooling During the cooling mode, cool, conditioned air is circulated throughout the house by doing the exact opposite as the heating process. Heat is not extracted, instead it is propelled 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 technique as well. For more information on how to get started with a geothermal system in the Las Cruces area, contact Sun City Plumbing & Heating. Start saving on your energy bills today.