Scroll compressor11/30/2023 ![]() ![]() The ground loop serves as a heat source during the winter months and a heat sink during the warmer months. Geothermal heat pump systems use a ground loop, which is a series of pipes buried underground. During the colder season, geothermal HVAC systems work in reverse, by taking heat from underground and moving it indoors. ![]() But instead of exchanging heat with the outside air, geothermal heat pumps, also referred to as ground-source heat pumps, utilize the constant temperature 6 feet underground, where it’s typically 55 degrees on average.ĭuring the warmer months, the geothermal heat pump’s heat exchanger extracts indoor heat and transfers it underground to cool a home. Like air-source heat pumps, they operate by moving heat in and out of the home. Geothermal heat pumps are the most efficient HVAC systems on the market. However, there are two other heat pump types to consider – geothermal heat pumps and ductless mini-split heat pumps. Different Types of Heat PumpsĪir-source heat pumps are the most common type of heat pump, with an estimated 17 million American homes operating them. The gas furnace takes over when the temperature drops below what the heat pump can efficiently handle. Homeowners who live in far northern states such as Minnesota, North Dakota, and Alaska often pair their air-source heat pump with a dual-fuel system that consists of a heat pump and gas furnace. However, with new technology, heat pumps are incredibly efficient many upgraded models can still operate efficiently in temperatures below zero. In the past, heat pumps didn’t operate as efficiently once the temperature dropped below freezing. This makes them energy efficient and environmentally friendly. Since heat pumps simply move heat in and out of the home depending on the season, they don’t require fossil fuels such as natural gas to create heat. Even when it’s cold outside, there’s enough heat in the outside air to provide adequate heating. During the winter, heat pumps use refrigerant to extract heat from the outdoors and transfer it indoors. They use a reversing valve to seamlessly switch from cooling to heating mode. In the summer, it operates similarly to a central air conditioning system by using a refrigerant to pull heat from inside the home and transfer it outside through the system’s compressor.ĭuring the colder months, heat pumps operate in reverse. RF-18 / Shutterstock What Is a Heat Pump?Ī heat pump is an all-in-one heating and cooling system. ![]()
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