Air Source
Heat Pumps

What is an Air Source Heat Pump?

An Air Source Heat Pump works by extracting latent heat from the surrounding air, from the outside they typically look like a large fan.

A renewable energy source

Suitable for most properties

Works year round

Virtually silent operation

Internal unit is smaller than a boiler

Gain financial rewards from the RHI Scheme

How it works

Air source heat pumps are installed on the external wall of a property and will vary in size depending on the heating requirements.

They extract latent heat from the outdoor air and then run it through a compressor to generate additional heat using a minimal amount of electricity, this is then condensed and used to heat your property.

The air doesn’t need to be warm outside for it to work effectively; many will operate in temperatures as low as -15C.

They can be used to supply radiators or underfloor heating as well as domestic hot water.

Ambient Air

Refrigerant Tubes



Expansion Valve


While air source heat pumps are viable for almost all properties, there are several things you can do to maximise their operating efficiency such as ensuring the size of the unit is appropriate to the heating requirements of the property and carefully selecting which wall they are installed on.

We can offer help and advice about the most appropriate system for your property to suit your requirements and budget.

RHI Applications

(Renewable heat incentive)

The Renewable Heat Incentive (RHI) scheme provides financial benefits to those who participate. Wilson Heat Pumps can help you through the whole process and have completed many successful applications.

Contact us today to discuss your requirements and see how we can help.