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Boiler Upgrade Scheme and Certification requirements for clean heat schemes consultation

DESNZ·consultation·low·30 Apr 2025·source document

This consultation is open for responses

Respond to this consultation

Summary

DESNZ proposes changes to the Boiler Upgrade Scheme to increase heat pump uptake and mandates MCS as the sole certification scheme across all clean heat programmes. The consultation covers grant mechanics for heat pumps and biomass boilers in England and Wales, alongside certification requirements for ECO4, Social Housing Fund, and Local Grant schemes. Consultation closes on date to be confirmed.

Why it matters

This is redistributive policy that treats the symptoms of expensive energy rather than addressing supply or market structure. The focus on certification standardisation may favour established installers over new entrants by raising compliance costs.

Key facts

  • BUS launched in 2022
  • Covers England and Wales
  • Applies to homes and small non-domestic buildings
  • MCS certification mandate across ECO4, Social Housing Fund, and Local Grant

Areas affected

behind the meter

Related programmes

Net Zero
Memo

This consultation is divided into two parts. Part 1 iseeks stakeholders’ views on proposed changes to the Boiler Upgrade Scheme (BUS) designed to stimulate further demand and enhance consumer protections. The BUS was launched in 2022 to support the decarbonisation of heat in buildings. Through the scheme capital grants are available to support the installation of heat pumps and biomass boilers in homes and small non-domestic buildings in England and Wales. Part 2 seeks views on proposals to mandate MCS as the sole certification scheme for all DESNZ clean heat schemes including the BUS, the Energy Company Obligation 4 (ECO4), Warm Homes: Social Housing Fund, and Warm Homes: Local Grant. Read the [consultation document on GOV.UK](https://www.gov.uk/government/consultations/boiler-upgrade-scheme-and-certification-requirements-for-clean-heat-schemes).