Air source heating turns outdoor air into warm heating and hot water for use in your home. Like the mechanism by which a refrigerator transfers heat from one place to another, a heat pump draws in cold air from the outside, boils the refrigerant in it, and pumps the heat into the home. Unlike fossil fuels, there is no risk of carbon monoxide poisoning, making heat pumps a safe choice for all homes. We offer  Mitsubishi air to water systems. Our experts are on call to help you choose the perfect system for your new build or retrofit project.

How it works

In an air source heat pump, outside air is drawn over the evaporator. The refrigerant absorbs heat from the air and changes from a liquid to a vapour.

The refrigerant then passes through a compressor, increasing the pressure and consequently the temperature of the vapour. This higher temperature is now suitable for domestic heating

The higher temperature refrigerant then passes through the condenser heat exchanger, transferring heat to the heating system. With the heat now removed, the refrigerant returns to liquid. The liquid refrigerant then passes through the expansion valve, returning the refrigerant to its original state ready to repeat the cycle. A heat pump typically consists of four main components; evaporator, compressor, condenser and expansion valve.