Geothermal heat pumps are an energy efficient addition to the heating and cooling scene. This type of installation offers an innovative way to both heat and cool your Archdale, North Carolina, home. If you’re interested in upgrading your current HVAC system, consider a geothermal installation. Since this technology is still relatively new, you may not know how geothermal heat pumps work yet. Read on to learn more about how geothermal HVAC systems can benefit your home.
How Heat Pumps Work
Geothermal heat pumps work similarly to regular heat pumps, so it’s helpful to begin with a sound understanding of how a standard heat pump works. Heat pumps don’t generate thermal energy. Instead, they move heat from one area to another using a high-pressure refrigerant. When the system is in heating mode, it gathers heat from the air outside and brings it in. In cooling mode, it captures heat that’s in the air inside the home and vents it outside, lowering the temperature.
How a Geothermal Heat Pump Works
A geothermal heat pump moves heat the same way a regular heat pump does. However, it transfers heat above-ground. Instead, the heat pump gathers and deposits heat underground where temperatures are consistent year-round. About 30 feet below the surface, the earth is consistently between 45 and 75 degrees Fahrenheit.
To do this, the system typically utilizes a series of closed refrigerant-filled loops that are buried in the ground. These coils can be laid out in various ways and may run vertically or horizontally underground to make the best possible use of the space available.
Some systems use an open-loop design that circulates water rather than refrigerant. These may connect to a lake or other water source and draw on the water from these to circulate a continuous flow of liquid in much the same way as HVAC systems usually use refrigerant.
When the geothermal heat pump is in cooling mode, it pulls heat from the air in the home and sends it underground in the refrigerant. There, the heat is dispersed efficiently where temperatures are cooler under the soil. When the geothermal system converts to heating mode, the refrigerant gathers warmth underground and brings it up into the home. As in any heating or cooling system, the air is them blown over the refrigerant-filled coils and delivered to the home.
The Cost-Saving Benefits of a Geothermal System
A geothermal HVAC system is a beneficial choice for many reasons. It’s far more energy efficient than a central heating or cooling unit. Since it utilizes the temperatures that are naturally present underground, the system doesn’t have to generate heat or create a cooling effect on its own.
Geothermal systems use 25% to 50% less energy than air-source heat pumps, which are themselves more efficient than central heating and cooling units. These systems move three to five times as much energy as they consume. If you’re looking for a way to make your home greener, a geothermal HVAC installation is a smart option.
The Convenience of Heat Pumps
A geothermal heat pump offers the same benefit as any heat pump, which is the possibility to get both heating and cooling from the same installation. One singular system provides all your home comfort needs, making it easier to maintain. Rather than scheduling two annual maintenance visits for different systems, you can focus on your sole installation for home comfort.
Geothermal heat pumps have a long lifespan, so you can rely on them for your comfort long into the future. The system will typically last over 20 years, and underground infrastructure can last 25 to 50 years. Over the life of the system, the energy savings will typically exceed any extra investment in installing a geothermal system over a traditional HVAC system.
If you’re interested in exploring a geothermal heat pump for your home, contact Air Treatment Inc. at 336-790-3206. We can help you decide whether this type of HVAC system is right for your home and walk you through the installation process if you want a geothermal heat pump.
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