What is the Boiler Upgrade Scheme?

The Boiler Upgrade Scheme (BUS) is a UK Government scheme designed to help homeowners in England and Wales afford the upfront costs of installing a heat pump.

What systems are covered by the scheme and how much funding is available?

The Boiler Upgrade Scheme covers three low carbon heating systems:

  • Air source heat pump: £5,000 off cost and installation.
  • Biomass boiler: £5,000 off cost and installation*.
  • Ground source heat pump: £6,000 off cost and installation.

*Biomass boilers may only be installed in properties located in rural areas with no mains gas connection.

How will I know which low carbon heating system is right for my home?

Your installer can advise whether a heat pump or biomass boiler is suitable for your property. They may recommend improving the energy efficiency of your property first.

Who can apply for the Boiler Upgrade Scheme?

It’s open to homeowners, as well as owners of small business properties, in England and Wales only.

To apply, you will need to:

  • Own your property (this can be a home or a small business property).
  • Have a valid Energy Performance Certificate (EPC). Your EPC must not have any outstanding recommendations for loft or cavity wall insulation (unless you have an insulation exemption). Properties must have an EPC, unless they are a self-build.

When does the scheme open?

Heating systems that are commissioned (ie installed and fully checked by your installer) on or after 1 April 2022 will be eligible for funding under the scheme.
The new heating system must also be able to meet the full space heating and hot water requirements of your property and meet certain technical standards, such as minimum efficiency requirements. Your installer can advise you on these.

How can I access the scheme?

The Boiler Upgrade Scheme is an installer-led scheme. This means that the installer will apply for the grant on your behalf.

How will the process work?

  1. You will need to find an MSC certified installer in your area who is able to carry out the work. The MCS quality assurance scheme ensures that installers are competent, and the products they use meet the correct standards.
  2. The installer will then advise you on whether your installation is eligible for a grant under the scheme.
  3. You will agree a quote for the installation with your installer, and this should include the grant from the Boiler Upgrade Scheme as a deduction from the total amount.
  4. The voucher application will be led by the installer. Once the property owner has selected their preferred installer, the installer will  apply to us for a voucher representing the grant amount. 


Contact us for more information.