Physics on Your SideConventional HVAC systems use air to transfer heat. However, air is a very poor conductor of thermal energy. In contrast, geothermal systems transfer heat directly to or from the ground. The ground is composed of solids, such as soil and rock, and liquid water. Liquids and solids transfer heat much more efficiently than air. This is why geothermal can deliver the same heating and cooling output while using as little as 20 percent of the energy as a typical air conditioner.
Always the Same TemperatureGeothermal HVAC systems run efficiently year-round regardless of the outdoor temperature. Even though the temperature outside might be well below freezing, the temperature just five or six feet below the surface doesn’t change much from season to season. On the other hand, an air-source HVAC system works best when the temperature is relatively mild.. However, when the temperature drops below freezing, this type of system usually requires an auxiliary furnace to provide enough heat.
Geothermal heating and AC equipment lasts for decades with regular maintenance because much of the system completely protected from the elements. All of the exterior equipment is hidden underground, and the interior air handler and refrigerant pumps are in a climate-controlled environment. According to the US Department of Energy, geothermal heat pumps should last for at least 20 years. What’s more, the underground equipment should last for up to half a century. Combined with its energy efficiency, a geothermal system’s long lifespan means that it ends up being far cheaper in the long run than installing multiple air-source HVAC systems over the same time period.
Need more info to decide whether a geothermal HVAC system is the way to go for your home or business? Visit us at Mattex Heating, Plumbing, and Cooling, or call us at (217) 355-9700 today to speak with one of our geothermal HVAC professionals!