Select committee: Public Accounts Committee
Recommendation 13
Thirty-Seventh Report - Decarbonising home heating
Published 26 May 2024
Addressed to HM Treasury
Public Accounts Committee Decarbonising home heating All items in this report Report on parliament.uk ↗ Inquiry on parliament.uk ↗
Recommendation (the committee's words)
We asked DESNZ why it had decided to change the minimum insulation standards required for heat pumps, and what impact it expected this decision to have. DESNZ told us that government had decided to leave insulation improvements as a choice for householders. It explained that it was still recommending that they make such upgrades in response to their EPC, but that it was leaving it to householders to choose when, or if, to undertake this work. We therefore asked DESNZ about the evidence it had used to reach this decision. DESNZ told us that it made its decision based on evidence that showed that 80% to 90% of UK homes do not need additional insulation for a heat pump to work effectively. DESNZ accepted, however, that it still needed to do some myth-busting about the quality of the consumer experience when living with a heat pump.26
From: Public Accounts Committee, Thirty-Seventh Report - Decarbonising home heating (HC 653), 26 May 2024
Government response
The government responded to the whole report on 11 July 2025 (deadline 26 July 2024).
Summary written by Accountability Index from the government's response. It is not the government's own words.The government states that it agrees with most of the Committee's recommendations on decarbonising home heating, some with target dates still "to be confirmed", and disagrees with one, on gas network decommissioning.
- On heat pump running costs, the government agrees with the recommendation, but implementation is "dependent on further steers from new ministers" and no date is set. It says it "is considering" the best way to bring costs down.
- On installer numbers, the government agrees, with a target of Summer 2025. It says decisions on future training support "will form part of Spending Review 2025 (SR25)", as the Heat Training Grant is funded until April 2025.
- On data, the government agrees to publish quarterly data on retrofit installations using government funding, with a target of Winter 2024. It "cannot commit" to publishing data on new builds or unfunded installations "until a suitable mechanism is found".
- The government disagrees with the recommendation to set out gas network decommissioning arrangements by end-June 2025, saying a full assessment "will require more time". It says it is "currently exploring ways" to facilitate the transition.