Heating and cooling for homeowners in Hebron, KY account for almost half of the energy used. Geothermal HVAC systems cut heating and cooling energy usage by up to 75 percent by using the heat of the Earth to heat and cool a building. Geothermal heat pumps are energy efficient, quiet to operate and can last for up to 50 years.

How Geothermal Heat Pumps Work

Just a few feet below ground, the Earth stays at a constant temperature of between 50 and 65 degrees Fahrenheit. Geothermal heat pumps extract this heat energy from the ground and route it into your home during winter months. During the summer, heat is removed from inside and released into the ground.

Heat exchange is accomplished by burying pipes several feet underground or submerging them in a nearby body of water like a lake. Coolant circulating through the pipes passes through a heat exchanger that collects and releases heat. Heat pumps do not use energy to produce heat. Instead, they transfer heat from one place to another, which uses less energy to operate.

Types of Geothermal HVAC Systems

There are four types of geothermal heat pump systems. Three are closed-loop: vertical, horizontal and pond or lake. The fourth, an open-loop system, uses water from a nearby well or surface water source as the medium for heat exchange.

In closed-loop systems, coils of pipes are placed several feet underground either vertically or horizontally or submerged in water in a pond or lake. Coolant circulates within the system.

In open-loop systems, coils are placed in a well or surface water body. The water serves as the medium of heat exchange. Water is extracted from the well or waterbody, circulated through the system and released back into the well, waterbody or a discharge well. This system requires clean water and must comply with regulations regarding discharge of groundwater.

The Furnace Doctor provides heating and cooling systems with high energy efficiency values to local residents. We recommend products that are compatible with your lifestyle, budget, and indoor comfort needs. For more information about geothermal HVAC systems, talk to one of our trained service technicians at (859) 286-4453.