4 Types of Geothermal HVAC Systems for Your Home

A geothermal HVAC system works a lot like a conventional heat pump, but instead of transferring heat to or from the outdoor air, geothermal systems move it between your indoor air and the ground or a nearby body of water. They’re more efficient because water and ground temperatures stay warmer in winter and cooler in summer, making transferring heat easier. A geothermal system is a significant investment, but it will eventually pay for itself by reducing your power bills and increasing your Alton, Illinois, home’s value. You can select a horizontal, vertical, open loop, or closed-loop geothermal heat pump.


Horizontal geothermal systems use hundreds of feet of pipes that contain water or refrigerant. They’re buried in horizontal trenches, so the soil in your yard must be easy to excavate. These geothermal HVAC systems are ideal for new construction, but installing one could disturb the landscaping on an existing lot.


With a vertical system, the pipes go in holes that are hundreds of feet deep and just a few inches wide. These systems are more costly than horizontal heat pumps, but they won’t impact your landscaping. They can also fit on smaller lots.

Open Loop

A geothermal system with an open loop uses pipes to transport water to and from a nearby well, lake, or pond. Since the water is drinkable, it can act as a water heater. These units also don’t need as many pipes as other models.

Closed Loop

A geothermal heat pump with a closed loop sends the same liquid through its pipes over and over instead of exchanging it with a water source. Many closed-loop systems use radiant heating so that the pipes can heat your floor or your baseboards in winter.

Den-Son Inc. Cooling & Heating has been providing geothermal and indoor air quality services since 1972, and we’re a Trane Comfort Specialist. We’re also a family business that guarantees 100% customer satisfaction. For outstanding service from our friendly, skilled professionals, call us anytime at 618-207-3847.

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