How Geothermal Works No matter what climate you live in, the temperature throughout the year varies. For some climatic zones that means blazing summers that cool to ice-cold winters, and Green Bay is no exception. What many people don't understand is that the temperature underground (regardless of climate or season) stays fairly consistent all year. The ground is able to maintain a higher rate of temperature consistency because it absorbs 47% of the sun's energy (heat) as it impacts the Earth's surface. WaterFurnace geothermal systems are able to tap into this free energy with an earth loop. This technology is then used to provide 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 passes this warmed air through a standard duct system. Additional options include using that same heat to provide hot water and radiant floor heating are available. Geothermal Cooling In the cooling mode, the heating process is reversed - creating cool, conditioned air all through the home. Instead of pulling heat from the ground, heat is taken 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 Green Bay area, contact Van's Refrigeration. Start saving on your energy bills today.