PARLIAMENTARY WRITTEN QUESTION
(10 October 2025)

To ask the Secretary of State for Energy Security and Net Zero, what assessment he has made of the suitability of current Seasonal Coefficient of Performance thresholds for high temperature heat pumps.

Asked by:
Mr Lee Dillon (Liberal Democrat)

The current product standards regulations do not set distinct performance thresholds for high temperature heat pumps. The ecodesign heat pump efficiency standard applies to all heat pumps other than low temperature models. However, the government consulted in December 2024 on proposals for ‘raising product standards for space heating’. These included introducing a definition and standards for high temperature heat pumps. Under the proposals, this would be defined as any heat pump operating at 65°C flow temperature. The government will publish a response to that consultation in due course.

Answered by:
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