Geothermal energy is a popular option for residential heating systems. Using heat stored in the earth, these systems extract this energy to heat your building. It also helps in reducing electricity use.
Geothermal units use a system of loops buried underground, using the constant temperature of the ground to heat and cool your home via energy exchange. In the colder months, the water in these loops absorbs heat from the earth and transfers it to the geothermal unit. It is then compressed to a higher temperature and sent as warm air. In the summer, the process is reversed, with heat siphoned from your home and sent back into the earth.
Geothermal energy does not use fossil fuels and consumes very little electricity. You can save between 55-70% on your energy bills and the systems can last nearly twice as long as standard HVAC systems.