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Heat Pumps

Asked by Mr Lee DillonLiberal DemocratDepartment for Energy Security and Net ZeroTabled Answered 20 October 2025UIN 80735

The question

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.

Answered by Martin McCluskey

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.

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