This system is the geothermal closed-loop heat pump, which provides both heating and cooling for the home. This stored energy is collected from the sun's energy striking the earth. This solar energy is absorbed by the ground around your house all year long. The geothermal system uses this huge mass of stored energy to heat and cool our homes and businesses. There is no outdoor unit used with this system as you would find with a conventional heat pump system.
Heat is exchanged with the earth by using a buried earth loop and a small circulating pump.
This earth loop must be installed by a certified contractor. The integrity of this loop is such that a virtual lifetime of trouble-free use can be expected. Installation by any other means may cause a failure of the pipe because of the unique conditions below the ground. Water, with an antifreeze solution, is circulated through the earth loop. This is possible due to the fact that it takes advantage of below ground temperatures that are warmer in the winter and cooler in the summer than the outdoor air.