Boiler Upgrade Scheme

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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:

  • £7,500 off the cost and installation of an air source heat pump
  • £7,500 off the cost and installation of a ground source heat pump, including water source heat pumps
  • £5,000 off the cost and installation of a biomass boiler

£450 million of grant funding is available over three years from 2022 to 2025. In March 2023, the Department for Energy Security and Net Zero announced an extension to the BUS from 2025 until April 2028. On 18 December 2023, the government announced £1.5 billion additional funding for the BUS extension over three years.