An air-source heat pump is a heating system that extracts heat from the surrounding air and uses it to heat buildings and provide domestic hot water.
It is the most commonly used type of heat pump and a popular alternative to gas or oil heating systems.
How it works:
The air-source heat pump draws heat from the ambient air and transfers it to a refrigerant, which evaporates at low temperatures. A compressor then increases the pressure of the gaseous refrigerant, causing it to heat up. This heat is transferred to the heating system via a heat exchanger. Afterward, the refrigerant expands, returns to its liquid state, and the cycle begins again.