Geothermal systems are among the most efficient of all heating and cooling systems, making them an increasingly popular choice for home and business owners alike. These systems utilize subterranean pipes to transfer heat from the ground to the air inside your building and vice versa, making them an effective and energy-efficient source of both heating and cooling.
At Vogel Heating & Cooling, we provide top-quality commercial geothermal installation in St. Louis and the surrounding areas. If you have an existing geothermal system in need of service, we can also handle a variety of repairs, as well as full system replacement. Since 1946, we have prided ourselves on our commitment to exceptional workmanship, honest pricing, and complete customer satisfaction.
What Is a Geothermal System & How Does It Work?
Also known as geo-exchange systems, geothermal systems utilize geothermal heat pumps to transfer naturally occurring ground heat to the air inside a building via a series of underground pipes. Though these systems are often associated with heating, they actually serve as two-in-one heating and cooling systems. During warmer months, geothermal systems can be used to transfer hot air inside a building to the ground using the same series of pipes, thereby effectively cooling the space.
Geothermal energy is a renewable resource. Because ground temperature tends to remain at a relatively stable temperature, ranging from about 45 to 75 degrees Fahrenheit year-round, it serves as an ideal heat source or sink, depending on the season and your heating or cooling needs. As a result, geothermal systems are widely considered to be not only some of the most energy-efficient commercial HVAC systems but also some of the most eco-friendly.
There are two main types of geothermal systems, both of which work in unique ways:
- Closed-Loop Systems: Closed-loop geothermal systems—which include horizontal loop, vertical loop, slinky loop, and pond loop systems—are the most common type of geothermal system on the market. Closed-loop systems utilize a combination of water and antifreeze (or a similar refrigerant) to transfer heat via the heat exchanger coils.
- Open-Loop Systems: Open-loop geothermal systems are somewhat simpler than closed-loop systems. These systems draw water from a suitable source, such as an aquifer or hot spring, which is then moved through the heat exchangers located in the heat pump component of the system. Once this is complete, used water is discharged into the same water source.
Nearly all geothermal systems use heat pumps—which contain heat exchangers, compressors, and other related control systems—to transfer heat to and from the ground. Some geothermal systems also contain air handling units.
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