Then the gas absorbs heat. A regular heat pump system extracts heat in the winter from outdoor air and transfers it inside your home's ductwork by a fan.
So, a geothermal heat pump can consume one unit of electricity for extracting three units of heat from the earth. Because these systems are not having outdoor condensing units, like air conditioners have, you don’t need to be tensed about a noisy apparatus outside your home.
For More Info:-https://shv.co.nz/products/heat-pumps/