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The Boiler Upgrade Scheme (BUS) aims to incentivise and increase the deployment of low carbon heating. Upfront capital grants will be provided to support the installation of heat pumps and, in limited circumstances, biomass boilers in domestic and non-domestic buildings. Grants of £5000 will be available for air source heat pumps (ASHPs) and biomass boilers, and grants of £6000 will be available for ground source heat pumps (GSHPs). Grants will be offered at a flat rate and will not vary by capacity of the installation, which must not exceed 45 kWth.

The scheme opened for account creation on 11 April 2022 and will open for applications on 23 May 2022.

This guidance outlines Ofgem’s administration of the BUS. This guidance is for property owners wishing to install a BUS funded heat pump or biomass boiler.

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