Boiler Upgrade Scheme (BUS)

What is the Boiler Upgrade Scheme?

The Boiler Upgrade Scheme (BUS) supports the decarbonisation of heat in buildings. It provides upfront capital grants to support the installation of heat pumps and biomass boilers in homes and non-domestic buildings in England and Wales.

Acting on behalf of property owners, installers can apply for:

  • £5000 off the cost and installation of an air source heat pump
  • £5000 off the cost and installation of a biomass boiler
  • £6000 off the cost and installation of a ground source heat pump, including water source heat pumps

£450 million of grant funding is available over three years from 2022 to 2025.

Our role

Ofgem is the scheme administrator. Our responsibilities include:

  • publishing procedural guidance to prospective installers
  • processing voucher applications and voucher redemption applications
  • making payments to installers following successful voucher redemption applications
  • publishing reports on how the BUS is operating
  • monitoring and enforcing compliance with the requirements of the regulations.

The Department for Business, Energy and Industrial Strategy is responsible for the scheme policy and legislation. This is set out in the Boiler Upgrade Scheme (England and Wales) Regulations 2022.

Further information

Visit our page for installers if you are thinking of installing low carbon heating with BUS support. You will need to read our detailed guidance for installers before you apply to the scheme.

If you are a property owner who is interested in installing low carbon heating at your property, please visit our page for property owners.