Geothermal Heating Systems


High Oil Prices Breaking Your Budget?
We can help! An environmentally-friendly geothermal heating system may be the answer to your high heating costs. According to the U.S. Environmental Protection Agency (EPA), geothermal systems are "the most energy-efficient, environmentally clean, and cost-effective space conditioning systems available today." These extremely high levels of efficiency are possible because a geothermal heat pump only uses electricity to move heat, not produce it.

How Do Geothermal Systems Work?
Water is circulated through the earth and acts as a heat transfer medium. In the winter, heat is transferred from the earth to your home, and in the summer, heat is transferred from your home to the earth.

Are there different types of geothermal systems?
Yes, there are. In New Hampshire, there are essentially two types of systems, the most common being an "open-loop" system. It consists of one or more groundwater wells and a heat pump. Water is pumped out of the well and circulated through the heat pump where heat is extracted from the water and returned to the earth to warm up again.

More Information
See the Online Answer Center and Fact Sheets page for more information about geothermal heating and cooling systems.