Low-carbon heating

Heat pumps

A heat pump moves heat from the air or ground into your home. Quiet, low-carbon, and designed to run gently over longer periods.

Typical install
2–5 days
Best suited to
Insulated homes
Funding routes
National schemes
An air source heat pump installed beside a UK brick house

Low-carbon heating and hot water

Works well in a well-insulated home

Can be combined with solar generation

No on-site fuel storage needed for air source systems

The basics

What heat pumps actually does

A heat pump moves heat from the air or ground into your home. It works differently to a gas boiler and usually runs at lower temperatures over longer periods.

This is likely to suit you if…

  • Your home is reasonably well insulated
  • You have outdoor space for a unit or land for ground loops
  • You are off the gas grid or replacing an old fossil-fuel system
  • You want lower-carbon heating and hot water

Your options

Types of work an installer may recommend

Which option suits you depends on your property's construction, age and condition. A survey confirms what is possible.

Air source heat pump

An outdoor unit that draws heat from the air.

Ground source heat pump

Pipework in the ground, suited to properties with land.

Hybrid systems

A heat pump paired with an existing boiler.

Design is everything with a heat pump

Performance comes from a proper heat-loss calculation, correctly sized emitters and a sensible flow temperature. Always ask to see the design before you commit.

Step by step

How the journey usually runs

  1. 1

    Initial eligibility check

  2. 2

    Heat loss survey

  3. 3

    System design and quotation

  4. 4

    Funding application

  5. 5

    Installation and commissioning

Paying for it

Funding routes that may apply

Funding is never guaranteed. These are the routes most often used for this type of work in the UK.

National low-carbon heating schemes

Nation-specific programmes

Local authority funding

Schemes that can cover heat pumps

OpenEngland, Scotland, Wales, Northern Ireland

Low Carbon Heating Grant

A sample national contribution towards replacing fossil-fuel heating with a low-carbon system such as a heat pump.

Who it may suit: Owner-occupiers and small landlords replacing an existing fossil-fuel heating system.

Heat pumpsHeating

Last reviewed: [Last reviewed date]

OpenScotland

Warmer Homes Support (Scotland sample)

A sample Scotland-only programme offering advice, funding and in some cases interest-free loans.

Who it may suit: Scottish households meeting income, benefit or property-condition criteria.

InsulationHeatingHeat pumps

Last reviewed: [Last reviewed date]

Initial results are indicative only. Final eligibility and funding are subject to checks by the relevant scheme, authority, funder or installer.

Be prepared

Questions worth asking an installer

  • What heat loss calculation have you used?

  • Will my radiators or pipework need changing?

  • What running-cost assumptions are you making?

  • What happens if performance is not as expected?

Every installer listed with us is checked for accreditation and insurance before they appear in your matches.

Questions

Common questions

Modern units are comparable to a fridge at a short distance. Siting matters, and your installer should discuss it.

Read next

Related advice

A street of typical UK homes
Getting started

How home-improvement grants work

Who funds these schemes, why criteria differ across the UK, and what actually happens between applying and installation.

6 min read

New windows and a front door on a UK home
Your home

Understanding your EPC rating

What the letter actually measures, why it matters to funders, and how to find yours.

5 min read

Keep exploring

Other home improvements

Insulation

Keep more of the heat you pay for inside your home.

Explore

Heating upgrades

Replace ageing or inefficient heating with something more controllable.

Explore

Solar panels

Generate some of your own electricity from your roof.

Explore

Battery storage

Store electricity to use when you need it most.

Explore

See what funding may apply to your home

A free check takes a couple of minutes, never affects your credit score, and shows the schemes and installers relevant to your postcode.