McCall's Geothermal HVAC systems are quieter, last longer and need less maintenance than conventional air-source heat pumps. Geothermal systems have been in use in the US since the late 1940s. These innovative heating solutions use the earth's constant temperature as an exchange medium instead of outside air. By harnessing the capacity of the earth, the geothermal systems are able to reach efficiencies of 300% to 600% on the coldest winter nights compared to 175% to 250% for air-source heat pumps in similar circumstances.
Savannah is a great fit for Geothermal heating and cooling. It can seem like Savannah has some seasonal temperature extremes (muggy heat in the summer to the occasional freeze in winter). However, a few feet below the earth's surface the ground remains a relatively constant temperature. In the winter the temperature is warmer than the air above it, and in the summer it is cooler than the air above it. A McCall's Geothermal unit takes advantage of this by exchanging heat with the earth through something called a ground heat exchanger. The ground exchanger is what enables increased efficiency of any geothermal unit McCall's uses.
The installation cost of a McCall's geothermal system is often higher than the cost of a traditional HVAC system with similar heating and cooling capacity. However, a geothermal system more than pays for itself in energy savings in 5 to 10 years. The lifespan for a geothermal heating system in savannah is impressive. The above ground elements last an estimated 25 years and the underground components are estimated to last more than 50 years. That means that the a typical geothermal installation will save many times the cost of its installation during the normal lifetime of the above or below ground parts of the geothermal unit.
McCall's Heating and Air offers a free consultation to see if your home is a good fit for a Geothermal HVAC (air conditioning or heat pump savannah) system. If you think your home or office could be a good fit for geothermal in Savannah or anywhere in the Low country, please call us to arrange a free consultation: 912-898-1888.
If you are interested in learning more about Geothermal Heat Pumps, you might enjoy this video from the US Department of Energy: