What temperature do heat pumps run at?

Heat pumps run at a lower flow temperature (typically 35–55°C) than gas boilers (65–75°C), which is why radiators are sometimes upsized.

In more detail

Lower flow temperatures are what make heat pumps efficient, so system design matters.

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2026 figures, based on Energy Saving Trust, Ofgem & gov.uk data · always confirm with a professional survey.

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