A geothermal heat pump installation is never a do-it-yourself job and should always be done by a licensed HVAC contractor who is experienced with these types of HVAC units. Geothermal heat pumps utilize the constant below ground temperature of water or soil to condition the home in both the warm and cooler months.
Factors Affecting a Geothermal Heat Pump Installation
The geology and hydrology of the property are important factors to consider in the design of the underground loop. Soil with good heat transfer properties needs less piping, and hard rock soil may require vertical loops instead of horizontal loops. The water quality and its depth and volume also help determine whether a closed or open loop is used.
Once it is determined whether or not to install an open or closed loop, a polyethylene pipe is placed in the ground. For horizontal pipes, trenches are dug anywhere from four to six feet deep. With vertical pipes, the depth can range anywhere from 100 to 400 feet. The antifreeze water solution in the pipes acts as a heat exchanger. In the colder months, this solution takes heat from the ground and transfers it to the structure. In the warmer months, geothermal heat pumps reverse this process and remove heat from the structure and deposit it to the ground. Just like traditional systems, the home’s ductwork delivers the air throughout the home.
Benefits of a Geothermal Heat Pump
The main benefit of a geothermal heat pump is its efficiency. These systems use 25 to 50 percent less electricity than traditional HVAC systems. With reduced energy consumption, you can save a lot on monthly energy bills. Compared to air-source heat pumps, geothermal pumps emit over 40 percent less emissions. Geothermal heat pump systems can be installed in retrofit and new applications. They also allow for zone space conditioning where you can control temperatures in specific areas of the home.
If you are considering installing a geothermal heat pump in your Hendersonville, NC home, be sure to contact our team at Gentry Heating, Inc. Along with experience in installing geothermal pumps, our HVAC contractors offer top brand equipment that comes with excellent warranties. They will also be happy to provide you with a free in-home estimate upon evaluating your property’s soil and water supply. If your property is not suitable for a geothermal heat pump, they will be upfront and let you know.