60% of our home energy is used for Heating & Cooling
2007
Ground Source Heat Pump
The Geo Source heat pump utilizes the earth as the medium from which heat is extracted. Water is pumped through a heat exchanger in the heat pump. Heat is extracted. The water is then returned to the ground, either through discharge in a drain field or through a closed earth loop system. Because ground temperatures do not vary as dramatically as outside air temperatures, the heat available for transfer, as well as the unit’s operating efficiency remains relatively constant throughout the winter. At depths of 6 feet or more below the ground, the soil maintains a year-round temperature of about 46 degree F – 50 degree F in this region. In the summer, it’s cooler than the outside air; and, in the winter it’s warmer – making it an ideal energy source.
Although the initial installation cost may be higher, annual operating costs are much lower than all other types of heating systems. The added savings carry over to summer where cooling costs can be 30% - 50% less than the cost of cooling with an average central air conditioning system.
Kandiyohi Power Cooperative • 8605 47th Street NE • PO Box 40 • Spicer Mn 56288-0040
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