Jun 6 2017
Geothermal Heat Pumps for Energy Efficiency.
For climates with moderate heating and cooling needs, heat pumps offer an energy-efficient alternative to furnaces and air conditioners. South Florida in general and its Treasure Coast in particular is ideally suited for heat pump technology. There are three types of heat pumps: air-to-air, water source, and geothermal. They collect heat from the air, water, or ground outside your home and concentrate it for use inside. This article focuses mainly on geothermal heat pumps (ground-source or water-source).
Like your refrigerator, geothermal heat pumps use electricity to move heat from a cool space to a warm space, making the cool space cooler and the warm space warmer. During the heating season, geothermal heat pumps move heat from the cool outdoors into your warm house. During the cooling season, geothermal heat pumps move heat from your cool house into the warm outdoors. Because they move heat rather than generate heat, heat pumps can provide equivalent space conditioning at as little as one quarter of the cost of operating conventional heating or cooling appliances.
Geothermal (ground-source or water-source) heat pumps achieve higher efficiencies by transferring heat between your house and the ground or a nearby water source. Although they cost more to install, geothermal heat pumps have low operating costs because they take advantage of relatively constant ground or water temperatures. Geothermal ground-source heat pumps have some major advantages. They can reduce energy use by 30%-60%, control humidity, are sturdy and reliable, and fit in a wide variety of homes. Whether a geothermal heat pump is appropriate for you will depend on the size of your lot, the subsoil, and the landscape. Ground-source or water-source heat pumps can be used in more extreme climates than air-source heat pumps, and customer satisfaction with the systems is very high.
Geothermal pump systems reach fairly high coefficient of performance (CoP). They can reach a CoP of 3 to 6, on the coldest of winter nights, compared to 1.75–2.5 for air-source heat pumps on cool days. Ground source heat pumps (GSHPs) are among the most energy efficient technologies for providing HVAC and water heating.
A new type of heat pump for residential systems is the absorption heat pump, also called a gas-fired heat pump. Absorption heat pumps use heat as their energy source, and can be driven with a wide variety of heat sources.
Advanced Features to Look for in a Geothermal Heat Pumps.
A number of innovations are improving the performance of geothermal heat pumps.
Unlike standard compressors that can only operate at full capacity, two-speed compressors allow heat pumps to operate close to the heating or cooling capacity needed at any particular moment. This saves electrical energy and reduces compressor wear. Two-speed heat pumps also work well with zone control systems. Zone control systems use automatic dampers to allow the heat pump to keep different rooms at different temperatures.
Have you decided that a geothermal heat pump is right for you? Do you have a heat pump that needs to be serviced? Give us a call; we can help you every step of the way.
Would you like a complimentary…no obligation …project consultation? Please feel free to call for more details.
Goodiel Electric, LLC.
Florida License – EC13005097.
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