Boiler Upgrade Scheme (BUS)

What is the Boiler Upgrade Scheme (BUS)?

The Boiler Upgrade Scheme (BUS) is a government initiative designed to help property owners in England and Wales make the switch to low-carbon heating systems. The scheme offers upfront grants to reduce the cost of installing air source heat pumps, ground source heat pumps, and biomass boilers, supporting the decarbonisation of homes and non-domestic buildings. Learn more about Octopus Energy’s heat pump offering.

What Can You Get?

If you’re looking to replace your fossil fuel heating system (such as oil, gas, electric, or LPG), the Boiler Upgrade Scheme provides financial support to help cover the cost of installation:

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

With these grants, you can significantly reduce your home’s carbon footprint while enjoying efficient, modern heating technology.

What Funding Is Available?

The scheme provides £450 million in funding between 2022 and 2025, with an extension announced to run until April 2028. An additional £1.5 billion has been allocated to ensure continued support for low-carbon heating installations over the coming years.

How Does It Work?

The process is simple—your chosen installer will apply for the grant on your behalf, acting as the main point of contact throughout the installation process. Once approved, the grant is applied directly to the cost of the heat pump or biomass boiler, meaning you pay less upfront.

Am I Eligible?

The Boiler Upgrade Scheme is open to property owners in England and Wales. To qualify, your property must be:

Located in England or Wales (the scheme does not cover Scotland or Northern Ireland)
Replacing an existing fossil fuel heating system (oil, gas, electric, or LPG)

For detailed eligibility criteria, consult your installer or visit the official government pages linked below:

How to Apply

The application process is straightforward and handled by the installer. After confirming your eligibility and selecting the best low-carbon system for your property, your installer will submit the application on your behalf. Once approved, the grant is applied directly to reduce the cost of installation.

Why Choose a Heat Pump or Biomass Boiler?

Switching to a heat pump or biomass boiler can help you reduce energy costs, increase efficiency, and lower your carbon emissions. Heat pumps, in particular, are highly efficient, providing up to 310% efficiency compared to traditional gas boilers. This makes them an excellent long-term investment, both environmentally and financially.