How Geothermal Works We all know that Grinnell homes are acceptable to varying temperatures throughout the year. Some climates can see the extremes that summer and winter throw at us. There is a dependable source of temperature that you can put to good use; just a few feet beneath the earth's surface. How is that possible? The sun permeates the Earth's crust with its heat energy. Forty-seven percent of that energy is stockpiled in the ground as heat. WaterFurnace geothermal systems tap this heating potential using an earth loop system; collecting this free heat for your home. This innovative technology uses the sun's heat that the earth has readily accumulated to condition your home or office. Geothermal Heating During the heating cycle, a WaterFurnace geothermal heat pump uses the earth loop to extract heat from the ground. As the system pulls heat from the loop it distributes it through a standard duct system as warm air. The same heat energy can also be utilized for a radiant floor system or domestic hot water heating. Geothermal Cooling During the cooling mode, cool, refreshing air is circulated throughout the house by reversing the heating process. Heat is not extracted, instead it is propelled into the ground. The warm heat is extracted 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 Grinnell area, contact Latcham Enterprises. Start saving on your energy bills today.