Blog  ·  3 min read  ·  23 October 2026

Heat pumps for homes: is your house suitable?

A practical checklist for deciding whether a heat pump suits your house, with notes for each common UK property type.

Heat pumps for homes: is your house suitable?

Most UK houses can run a heat pump well. The question isn't usually whether a heat pump will work in your home, but what needs to be in place for it to run efficiently. Here's how to tell.

The quick suitability checklist

  • Outside space for a unit about the size of a large suitcase, with clear airflow.
  • Room for a hot water cylinder, or a place one could go.
  • A wet central heating system (radiators or underfloor heating).
  • Reasonable insulation: loft insulation and draught-proofing at least.
  • Ownership, or the owner's permission if you rent.

Heat pumps by house type

Detached houses

Usually the easiest installs: plenty of outdoor space and room for a cylinder. Larger homes need a bigger unit, typically 8 to 14 kW.

Semi-detached houses

The most common UK heat pump install. A 6 to 8 kW unit typically suits a three-bed semi, and many need only a couple of radiators upgrading.

Terraced houses

Units usually go in the rear garden or yard. Wall-mounted brackets help where space is tight, and the MCS noise assessment checks the distance to neighbours.

Bungalows

Bungalows are often well suited, with space for a unit and a cylinder. Loft insulation makes a big difference in single-storey homes.

Flats

Possible with somewhere to site the outdoor unit and the freeholder's consent. Smaller heat demand means a compact unit.

What about older or solid-wall homes?

Older homes lose more heat, so they need a carefully sized system and sometimes larger radiators. Simple steps like loft top-ups, draught-proofing and secondary glazing reduce the size (and cost) of the heat pump needed.

Next step

Answer six questions in our eligibility check and an MCS-certified installer will confirm suitability with a free survey.

Sources

Grant amounts, VAT rules and eligibility are set by government and the scheme administrators. We check them against these primary sources:

New to the jargon? See the heat pump glossary, or browse the heat pump FAQs.

Written by the GetASHP team. Prices and grant details checked 23 October 2026; always confirm current figures with your installer.

Questions

The things people ask us first

If yours isn't here, ask on the form and an adviser will answer it on the call.

Can you put a heat pump in an old house?
Yes. Heat pumps work in Victorian and older homes when they're sized correctly. You may need larger radiators in some rooms, and simple insulation improvements help, but solid-wall homes run heat pumps successfully across the UK.
Can I have a heat pump in a flat?
Often, yes, if there's somewhere to site the outdoor unit (a balcony, wall or garden) and you have permission from the freeholder. Smaller flats may suit a compact 4 to 5 kW unit.
Do I need planning permission for an air source heat pump?
Usually not. In England and Wales most air source heat pumps are permitted development, provided the unit meets size, siting and MCS noise rules. Listed buildings, flats and some conservation areas may need consent, and your installer will check this during the survey.
Will I need new radiators?
Not always. Heat pumps run at lower flow temperatures than boilers, so some radiators may need to be upsized to keep each room warm. Your installer works this out with a room-by-room heat loss calculation and includes any changes in your quote.
Get started

Your warmer home starts here

Answer six quick questions to check your eligibility for the £7,500 Boiler Upgrade Scheme grant and get a free quote from an MCS-certified installer.

Check my eligibility
GetASHPCheck my £7,500 grant