Which houses are suitable for air source heat pumps?

It's important to note that, while air source heat pumps can work really well for some homes, they're not suitable for all types of property. 

Firstly, you'll want to make sure that your home is insulated as well as possible, so that it can retain the heat. Homes with drafts, poorly insulated walls or single-glazed windows, such as older properties, are less likely to feel the benefits of a heat pump, so it's wise to address your home insulation and air-tightness first. 

Homes built with solid brick walls, insufficient insulation, or restricted space (like flats, mid-terrace buildings and high rises) are less likely to be a good fit for air source heating.

If you're opting for an air-to-water heat pump, you may need to upgrade your radiators to a larger size to get the most out of your system. 

You'll also need space for the outside unit, with room around it for airflow, and space inside for the control unit and hot water storage tank (similar to the space needed for a boiler and water cylinder). 

You won't normally need planning permission for an air source heat pump, but if you live in a listed building or conservation area, then you may need consent from your local authority.