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Geothermal Systems


Geothermal Systems by Lang 72 Degrees

There are two main categories of heat pumps: air-source heat pumps and geothermal heat pumps. Geothermal systems contain the latter. Geothermal heat pumps work a little differently than air-source heat pumps. Both heat pumps work to extract the heat from indoor air when it is hot outside. But whereas an air-source heat pump will draw heat from the outdoor air when its cold, a geothermal heat pump, also known as a ground source heat pump, gets its heat from the ground.

Below the frost line, about ten feet underground, a near-constant temperature of 54° is naturally maintained. This source can be tapped into to achieve heating in the winter and cooling in the summer. In the summer, when the temperature below ground is cooler than the outside air, geothermal heat pumps absorb heat from the air in the home and push it underground. The ground cools the hot air and then circulates (and recirculates) the cooled air throughout the home. This is how geothermal heat pumps save you money on air conditioning (U.S. Department of Energy).

Call Lang 72 Degrees for quality geothermal system and heat pump installation in South Carolina’s Lowcountry.

Types of Geothermal Heat Pump Systems

  • Closed-Loop Systems
    • Horizontal
    • Vertical
    • Pond/Lake
  • Open-Loop Systems
  • Hybrid Systems
  • Packaged Geothermal Systems
  • Water to Water Geothermal Systems
  • Split Geothermal Systems


If you’re looking into heat pump installation, give Lang 72 Degrees a call. Sizing, placement, depth, and accuracy are just some of the major calculations necessary for correct heat pump installation. A geothermal heat pump system will not perform without proper installation.

When researching heat pump installation, there are many options to consider, including a dual-source heat pump, which a combination system composed of both an air-source heat pump and a geothermal heat pump. The type of heat pump system that is best for your property depends on a variety of factors that can be established by a professional consultation from Lang 72 Degrees.

We back our installation services with a full Moneyback Guarantee. Your equipment will perform as stated or we will remove the installation and return your investment. Additionally, we offer Financing options with approved credit, and a Two-Year Warranty for all repairs.

Lang 72 Degrees is a fully licensed, bonded, and insured HVAC company in the Hilton Head-Bluffton-Beaufort metro area. For over three decades we’ve kept our local communities cool and comfortable. By keeping up with the latest heating and cooling technologies and only hiring the most skilled and accredited technicians available, you can feel secure that your heat pump system and your budget will be protected.

Call Lang 72 Degrees, “When the temperature absolutely has to be just right!”: HHI/Bluffton 843-681-6824, Beaufort 843-521-0200