How Geothermal Works The temperature throughout the year will always vary no matter what climate you live in. For some climates that means hot summers that cool to ice-cold winters, and Charleston is no exception. What many people don't understand is that the temperature underground (regardless of climate or season) stays pretty consistent year round. The ground is able to maintain a higher rate of constant temperature because it absorbs 47% of the sun's energy (heat) as it hits the Earth's surface. WaterFurnace geothermal systems are able to tap into this free energy with an earth loop. This technology is then put to use to equip your home or office with central heating and cooling. Geothermal Heating Utilizing the earth loop, a WaterFurnace geothermal heat pump takes 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 classic duct system. Additional choices include using that same heat to provide hot water and radiant floor heating are available. Geothermal Cooling Cooling the air is just the reverse process used in the heating cycle. Warm air is pushed by the geothermal heat pump into the ground. By removing the warm air, all that is left is cool air dispersing 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 Charleston area, contact Custom Climate Heating & Air. Start saving on your energy bills today.