How Does a Heat Pump Work?

A heat pump is one of the most energy-efficient heating technologies available today. It utilizes renewable thermal energy from the surrounding environment and converts it into usable heating energy for buildings. While its operating principle is similar to that of an air conditioner, its primary purpose is heating and domestic hot water production.

The system extracts heat from outdoor air, the ground, or groundwater, even when outdoor temperatures are relatively low. This energy is transferred through a refrigerant circuit, where the compressor increases its temperature before delivering it to the building's heating system. The heat can then be distributed through radiators, underfloor heating systems, or fan coil units.

One of the greatest advantages of a heat pump is its efficiency. A modern system can typically produce 3–5 kWh of heating energy from just 1 kWh of electrical energy consumed. As a result, heat pumps offer low operating costs, environmentally friendly operation, and significant long-term energy savings.