The elements of a geothermal loop system include buried loops of piping, biodegradable liquid antifreeze, a pump module to circulate the antifreeze and a heat pump.

The loops buried in the ground are connected to a circulating pump inside your home. This pump circulates a mix of water and biodegradable antifreeze through the buried loops, allowing the liquid mixture to absorb heat from the ground as it flows through the loop.

The heat pump takes heat from the liquid mixture and transfers it to the air circulated in your home. To cool the home in the summer, the system simply needs to work in reverse.

Ground-source heat is naturally renewable and non-polluting. A geothermal heat pump can move more than 3 units of heat energy for every single unit of electrical energy used to power the system. Geothermal systems can cut utility bills by 40-60 percent compared to conventional heating and cooling.