a refrigerator compresses a gas into a smaller space..... It blows the heat away out the back of the refrigerator and then allows the gas to expand into a larger space... this allows the expanded gas to absorb heat... which it does ...from the stuff you put in the refrigerator.
You put water into your freezer, and the expanded gas sucks the heat out of it . when the compressor compresses the gas, the heat from the water is blown out the back of the refrigerator.
... the circulating water absorbs the heat from the ground.....the "geothermal refrigerator" in your basement absorbs the heat from the circulating water and blows it out the back... into your house.
since the earth is warmed from the sun it's a kind of solar heat that actually works in cold climates. The compression of the gas, and the pumping of the water require 1/3 to 1/4 the cost for electricity that it would take for the electricity to "produce" the heat that is received in the house ... taken from the earth... taken from the sun.
You put water into your freezer, and the expanded gas sucks the heat out of it . when the compressor compresses the gas, the heat from the water is blown out the back of the refrigerator.
... the circulating water absorbs the heat from the ground.....the "geothermal refrigerator" in your basement absorbs the heat from the circulating water and blows it out the back... into your house.
since the earth is warmed from the sun it's a kind of solar heat that actually works in cold climates. The compression of the gas, and the pumping of the water require 1/3 to 1/4 the cost for electricity that it would take for the electricity to "produce" the heat that is received in the house ... taken from the earth... taken from the sun.