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Last updated: 9 April 2025

Air Source Heat Pumps in Wales: Costs, Grants & Savings

Air source heat pumps in Wales Hero
  • An air source heat pump will cost between £7,000 and £13,000 for the average UK home.
  • Savings from air source heat pumps range from £290 to £1,200 when replacing outdated heating systems.
  • Grants like ECO4 and the Boiler Upgrade Scheme can help pay for heat pumps.

With the price of heating going up, many are turning to cost-effective heating technologies. Along with the savings, there are many benefits of installing air source heat pumps in the UK, especially in Wales where a number of grants apply.

Learn more about air source heat pump prices in Wales, the benefits they offer, and whether they will be suitable for your home.

But first, if you’re looking for heat pumps in the UK or want to see if they’re the right choice for you, you should consult a heating engineer. Finding a reliable one can allow for hundreds of pounds of savings, but this can often require hours of tedious research. That’s why our service can save you both time and spare you all the headaches of assessing installers by yourself.

Simply fill out a 30-second form, and we’ll get back to you with up to 4 free, non-binding quotes from the best heat pump installers in your area. Click the button below to get started.

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Do heat pumps work in Wales?

Heat pumps are a great solution for heating and cooling in Wales. Unlike Northern parts of the UK, where homes experience colder temperatures throughout the year, Wales has a warmer climate than Northern Ireland and Scotland on average. It also rarely dips below 0°C, which means the region has an optimal temperature for heat pumps.

Air source heat pump running costs (Wales)
Yearly heating energy consumption Heat pump running cost
7,312.5kWh £760 to £1,185
11,212.5kWh £1,065 to £1,410
16,575kWh £1,475 to £2,435

Purchasing an air source model is far cheaper than paying a ground source heat pump cost in Wales, but the latter provides better efficiency and further decreases energy costs. Similarly, even within air source heat pumps, there are 2 categories: air to air heat pump and air to water heat pump models.

Air to air source heat pumps extract heat and pump it into the home, while air to water pumps also pump heat into a water receptacle. The latter can allow for underfloor heating or other hot water needs, but they are also more expensive.

Compared to gas boilers, heat pumps can incur lower costs, but this will depend on the COP (coefficient of performance) of your current system compared to that of a heat pump. The COP determines how efficient your heating system is. When the COP is above 3.0, heat pumps can be better than most gas boilers for saving costs.

Heat pump vs gas boiler COP

Air source heat pumps tend to be between 2 and 4. Ground source heat pumps have the highest COP, often being around 4 to 5, which is 5 times better than boilers. Moreover, COP has a higher effect in Wales, allowing for better savings. Heat pumps in Scotland, for example, will operate in lower temperatures, which can increase the strain on the system.

However, one caveat to this is that the heat pump will work optimally and provide maximum savings when the home is properly insulated.

Air source heat pump cost in Wales

Heat pump outputs determine what price you will end up paying for a heat pump. The overall cost will range between £8,000 and £16,500 for a full installation. Heat pump size has a direct correlation with price and ability to heat up larger homes. Air to water heat pumps will generally require a higher output for larger homes.

Air source heat pump prices in Wales
House size Air to air model size Air to water model size Supply cost Total cost
1 bedroom 7.5kW 4kW £4,000 - £8,000 £8,000 - 11,500
2-3 bedrooms 9.5kW 13kW £7,000 - £13,000 £11,000 - £16,000
4-5 bedrooms 11.5kW 16kW £9,500 - £15,500 £14,500 - £16,500

Heat pumps for flats or single room homes can start at 4kW outputs. The average home will need between 9kW to 13kW heat pumps, which can start at £7,000 pre-installation.

Air source heat pump servicing tends to cost between £10 and £20 per month, depending on what needs to be cleaned up. This is roughly similar to the monthly service cost for other central heating systems. It can cost £150 to do basic electrical repairs, while it can cost £2,000 to replace the compressor.

Air source heat pump running costs will also depend on the COP of the system and the size of your home. The lowest running costs will be £625 if the homeowner buys a heat pump COP of 4 and has a smaller home.

Air source heat pump savings
COP House size Heating energy use (annual) Running cost
3 1 to 2 bedrooms 7,312.5kWh £855
3 2 to 3 bedrooms 11,212.5kWh £1,205
3 3 to 4 bedrooms 16,575kWh £1,700
3.5 1 to 2 bedrooms 7,312.5kWh £760
3.5 2 to 3 bedrooms 11,212.5kWh £1,065
3.5 3 to 4 bedrooms 16,575kWh £1,475
4 1 to 2 bedrooms 7,312.5kWh £625
4 2 to 3 bedrooms 11,212.5kWh £870
4 3 to 4 bedrooms 16,575kWh £1,200

To find the right heat pump for your home, it's important to have it assessed by a trustworthy professional. Finding one on your own is a hassle that can take up hours, which is why our service is a better alternative. Fill out a simple, 30-second form and we'll provide you with up to 4 free, non-binding quotes from the best installers in Wales. Click the button below to get started.

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Air source heat pump grants in Wales

A heat pump grant can be a great way to cover the costs, especially if you live in a low-income household. Heat pump grants in Wales include:

Heat pump grants Wales
Air source heat pump grants in Wales
Grant name Savings Availability
ECO4 Up to £10,000 March 2026
Warm Homes Nest Scheme Varies based on property requirements Indefinite end date
Boiler Upgrade Scheme £7,500 April 2028
0% VAT Between £480 to £2,800 March 2027

The eligibility criteria for each grant can also vary:

  • ECO4: The Energy Company Obligation is available in Wales, as well as Scotland and Engalnd. It is meant for low-income households with an energy performance certificate (EPC) rating between D and G.
  • Warm Homes Nest Scheme: The Warm Homes Nest Scheme is only available in Wales and is open to those with chronic respiratory, circulatory, or mental health conditions.
  • Boiler Upgrade Scheme: The Boiler Upgrade Scheme allows homes in England and Wales to upgrade their current heating system to another more efficient one, with heat pumps included as an option.
  • 0% VAT: The 0% VAT is automatically applied to a number of goods that are deemed environmentally friendly and sustainable heating. There is no need to apply for the grant as heat pump manufacturers and suppliers decrease the cost on their part.

Air source heat pump savings in Wales

Air source heat pump savings £290 to £650 depending on the system you’re replacing.

Air source heat pump savings vs other systems
Heating system type Annual savings
Old (G-rated) gas boiler £290
Old electric storage heaters £1,200
New electric storage heaters £700
Old (G-rated) oil boiler £280
Old (G-rated) LPG boiler £650
New (A-rated) LPG boiler £260
Coal £650

Due to the price of electricity, many less efficient fossil-fuel systems may provide better savings than lower-power air source heat pumps. However, air source heat pumps are by far the best option for those living off the gas grid.

Heat pumps in Wales: Advantages & disadvantages

Pros
  • Grants to aid Purchase
  • Potentially better savings
  • Usable with renewable energy
  • Best electric solution
  • Good climate
Cons
  • High initial cost
  • Electricity running costs

Pros:

  • Grants to aid purchase: Wales has a number of grants that cut purchase expenses. The Boiler Upgrade Scheme, for example, can cut down £7,500 for heat pump installation in the UK.
  • Potentially better savings: With the right conditions heat pumps are 3 to 5 times more efficient compared to gas boilers.
  • Usable with renewable energy: Connecting an air source heat pump and solar panels can lead to the most efficient and self-sustaining energy system.
  • Best electric solution: Out of all the various electricity-based heating systems, heat pumps are the most efficient. Air source heat pumps are 3 times more efficient than gas boilers while also being cheaper than ground source heat pumps.
  • Good climate: Wales has a great climate for heat pumps as temperatures rarely go below zero. This also means that there is no danger of heat pump components freezing, which can be an issue in far colder regions.

Cons:

  • High initial cost: Air source heat pumps cost £2,400 - £12,350, which is a large amount. If you’re not eligible for a grant, the initial investment might be unfeasible.
  • Electricity running costs: Electricity is more expensive than gas in Wales. This can mean that your heat pump will cost more to run per kWh, which can sometimes mean higher costs if you don’t have the right COP.

Is a heat pump in Wales worth it?

Yes. Heat pumps can be worth it in Wales, especially if you have an ageing boiler. To achieve better running costs than most gas boilers, a heat pump will need to have a COP above 3. While heat pumps can be a big investment, there are many grants that can help mitigate this. Furthermore, prices for heat pumps are lower than ever, thanks to the 0% VAT scheme.

Welsh households that are off the gas grid can benefit from air source heat pumps in particular. They provide far better savings than other electric solutions and can be hooked up to other renewable energy sources. Heat pumps, if chosen correctly can be a great addition to any household in Wales.

If all this has swayed you into a purchase, you’ll probably be looking for more information or a heat pump quote so you can understand prices. For that, you’ll need to find a reliable installer which can take hours of research and calling up companies if done on your own. If you’d rather skip all the hassle, we’ve got a service that can provide you with up to 4 free, non-binding quotes from trustworthy professionals in your area.

Click the button below, fill out a quick form, and we’ll do the rest.

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