How Geothermal Works As the seasons change from spring to winter, temperature fluctuates throughout the year. Some climates can vary from scorching summers to cold winters; Central Ohio included. Did you know there is a pretty 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 maintained in the ground a few feet below the surface. WaterFurnace geothermal systems tap into this free heat with an earth loop. This ingenious technology reclaims the sun's heat providing your home or office with central heating and cooling. Geothermal Heating Utilizing the earth loop, a WaterFurnace geothermal heat pump pulls the heat from the ground in the heating cycle. The geothermal system draws the heat from the loops and delivers this warmed air through a traditional duct system. Additional choices include using that same heat to provide hot water and radiant floor heating are available. Geothermal Cooling The heating process is reversed in the cooling mode - creating cold, conditioned air all through 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 Central Ohio area, contact Westin Air. Start saving on your energy bills today.