Geothermal, or ground-source heat pumps utilize the consistent temperature of the earth as a heat source or heat sink. It's necessary to dig trenches or bore holes in the ground to facilitate this energy-saving heat exchange. Drawing courtesy of Dept. of Energy.
Heat pump technology has been around for a long time. Refrigerators rely on heat pumps to maintain cool temperatures.
Air-source heat pumps provide cooling and (in some cases) heating in many houses and commercial buildings.
But ground-source heat pumps (also known as geothermal heat pumps) represent the newest in heat pump technology, and are definitely in a class by themselves in terms of energy efficiency and "green" value.
Contact us today for more information about geothermal heating and cooling.
We offer estimates in Houston, Bellaire, Katy, Pasadena, Pearland, The Woodlands, West University, Richmond, Rosenberg, Lake Jackson, and all surrounding cities and towns.
All heat pumps require electricity to operate. The electricity powers a compressor that pumps a refrigerant compound through evaporation and condensation cycles, effectively “moving” heat from one location to another. This function is easier to understand if you think about the cooling effect that occurs when perspiration evaporates from your body. As the moisture on your skin changes from a liquid to water vapor, heat is absorbed and your body cools off. In the same way, refrigerant absorbs and gives up heat as it is pumped through evaporation and condensing cycles.
The more efficient a heat pump is, the less electricity (and money) will be required for it to operate. And here’s where geothermal heat pumps lead the way. A geothermal heat pump utilizes a renewable resource: the steady temperature of the earth at a depth of 10 feet or so. At this depth, the temperature of the soil remains between 45-55 degrees every day of the year. This steady temperature means that the earth can act as a heat source (to move heat inside the house in winter) or heat sink (to move heat from inside to outside during hot weather).
Not all properties are suitable for geothermal systems, but many are. To create the “ground loop” where the heat exchange takes place, it’s necessary to bore holes or dig trenches. Newer "direct exchange" or DX heat pumps circulate refrigerant compound directly in buried copper tubing, reducing excavation requirements.
If you plan to stay in your house for at least five years, a geothermal heat pump can be a very smart investment. Call Dr. Energy Saver to schedule an evaluation and estimate for an advanced geothermal heat pump system. We offer estimates in Houston, Katy, Bellaire, Pearland, Pasadena, West University, The Woodlands, Rosenberg, Lake Jackson, Richmond, Missouri City, Sugarland, , Friendswood, and more.