Therefore, the outdoor temperature in winter is , and the underground temperature is . A heat pump extracts this heat from the ground, concentrates it and transfers it as heat at an optimal temperature to the building heating system. Geothermal installations with heat pumps are usually not used to generate electricity, more often they are used directly to heat buildings. Heat pumps take thermal energy from any low-grade heat source (water, air, low-temperature soil) and concentrate it.

Then transfer it to heat the building. Approximately 100,000 settlements in C Level Contact List Russia are gasified, and in the rest of the territory, heating systems based on geothermal pumps may be almost the only alternative to firewood, since neither solar nor wind energy can adequately heat buildings. For heating, soil water pumps are more efficient: they absorb heat from the soil and transfer it to the water that circulates in the building's heating system.



To extract heat from the soil or groundwater, s used: it is a ring-shaped pipe laid in the soil, through which a refrigerant (usually an alcohol-water solution) circulates. Passing through a layer of earth (or groundwater), the refrigerant heats up, actually bringing the heat to the heat pump. A heat pump using Freon and a compressor will convert to (i.e. concentrated) and transfer this heat to the water that circulates in the pipes of the building's heating system. Such devices can be either small (designed for low-rise buildings and bungalow buildings are now the majority) or designed for heating multi-storey buildings.