The power to heat and cool your home—affordably, efficiently, and without harming the environment—lies right beneath your feet and all around your house. It’s the power of the Earth itself, which you can harness through geothermal loop systems in Louisville, KY.
A geothermal heat pump uses the ground as a medium for exchange. This separates it from an air-source heat pump, which uses the air as its medium. We’ll explain in this post how the geothermal loops in the ground can bring you heating and cooling that’s more efficient and reliable than what you receive from traditional home comfort systems.
Make a call to AccuTemp Heating and Air Conditioning to find out more about geothermal loop systems and how our skilled installers can make them work for your home.
How geothermal loops work in a ground-source heat pump
The basic principles of a geothermal heat pump are the same as that of a standard heat pump: moving heat from one place to another through the cycling of refrigerant. In heating mode, a heat pump moves heat from outside a home to the inside, and releases the heat through the process of condensation along an indoor coil. In cooling mode, a heat pump moves heat from inside a home, absorbing it along the indoor coil through evaporation, and releases it outside.
The difference between the two systems is the “outside the house” part. For a standard heat pump, an outdoor coil does the job of either releasing or absorbing heat. But with a geothermal system, there’s no outdoor coil. Instead, the refrigerant (which is water or a water/anti-freeze solution) moves into a set of loops buried in the ground at least 10 feet below the frost line. The loops either release heat into the ground or absorb it.
The advantage of using the earth for half of the cycle of heat exchange is the stable temperature found below the frost line. At 10 feet or deeper, the earth stabilizes to 55°F, and does not fluctuate due to weather conditions, whether extreme heat or cold. This gives a geothermal heat pump a reliable source for heat exchange, and it won’t struggle or lose efficiency no matter the outdoor temperature. The U.S. Department of Energy estimates that geothermal heat pumps, thanks to their ground loops, can run 3 to 6 times more efficiently than air-source heat pumps. It requires only one kilowatt-hour of electricity for a geothermal system to produce 12,000 BTUs of cooling or heating power, compared to more than twice that for a standard heat pump during a hot day. The efficiency is even greater in heating mode.
If this sounds like the energy-saving performance level you want from your home comfort system, and if you are interested in green technology with zero greenhouse gas emissions, call AccuTemp Heating and Air Conditioning today. We specialize in the installation of geothermal loop systems in Louisville, KY.