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What is the Boiler Upgrade Scheme and how does it work?

Updated: Jun 18

Heat pump, boiler upgrade scheme, Swansea, Neath Port Talbot, Bridgend, Brecon, Carmarthen, Cardiff
How to get £7500 towards your heat pump installation in South Wales

OFGEM run the Boiler Upgrade Scheme (BUS) to support the decarbonisation of heat in buildings as part of the UK Government’s Net Zero targets.

So, if you are considering installing an air source or ground source heat pump, you can get £7,500 off the cost of its installation by an Microgeneration Certification Scheme (MCS) installer such as Limitless Energy.

We are registered installers for the Boiler Upgrade Scheme and have helped all our heat pump customers access the grant since the scheme launched in April 2022.

To be eligible for £7500 from the cost of your air source or ground source heat pump, you need to be i) the homeowner, ii) have a valid Energy Performance Certificate (check your property on the EPC register) and iii) be replacing a fossil fuel system or, in the case of a new build, installing your first heating system.

The voucher is an installer-led scheme, which means we will apply for the voucher on your behalf, we liaise with OFGEM on most of their queries and support you to provide the required evidence (such as ID or previous heating bills).

As our client, you would be required to confirm to OFGEM that we can make an application on your behalf, and in some instances you will be required to provide additional evidence. For example, if you are applying as a self-builder for a new home, you will be required to provide confirmation that you own the property and are funding the works.

Once OFGEM have issued your homeowner voucher, we (the installers) confirm to OFGEM it has been installed and claim the money from OFGEM at the end of the project. As such, the grant comes directly to us the installer and is then discounted off your final bill or credited back to you if there is any surplus.

If you would like to talk to us about the Boiler Upgrade Scheme and your eligibility for an air source heat pump installation in Swansea, Neath Port Talbot, Bridgend, Cardiff, Carmarthen or Brecon please get in touch.

And, if you would like to talk to a previous customers about how the BUS application process went - please get in touch and we will be happy to facilitate a conversation for you.

Great news! As of March 2024, OFGEM have announced that properties no longer need loft or cavity wall insulation to be eligible for the grant, which can save up to £2500 in additional home improvements. We welcome the news that the grant is more accessible and can support more homeowners to make a sustainable choice and lower their emissions. But, however you chose to heat your home, we would always encourage our customers to prioritise efficiency and insulate their homes and reduce draughts in their property to support their comfort levels.

Thanks OFGEM, but what has heating got to do with Net Zero?

Heating is the UK’s biggest source of carbon emissions, which are the fossil fuel gases that contribute to climate change. Heating accounts for about 37% of total UK carbon emissions when including industrial processes. The breakdown of UK carbon dioxide emissions from heating is:

  • Space heating (including a relatively small amount of cooling) = 17% (14% attributed to domestic homes)

  • Hot water = 4%

  • Cooking = 2%

  • Industrial processes = 14%.

Net Zero targets – under plans to reduce carbon emissions to reach Net Zero by 2050, it means tough targets for heating, with most buildings needing to become zero carbon.

Challenge for UK housing stock - as only 5% of homes currently have low carbon heating. The UK is dominated by fossil fuel gas – with 85% or about 24.5 million homes heated by natural gas.


So if you are interested in finding out how a heat pump might work in your home, and you live in Swansea, Neath Port Talbot, Bridgend, Cardiff, Carmarthen or Brecon - please get in touch to arrange a FREE site survey.

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