Do I need three-phase power for a heat pump?

No — most domestic air-source heat pumps run on a standard single-phase supply.

In more detail

Only very large systems need three-phase; most UK homes are fine.

Work it out for your home: try our free heat-pump size & cost calculator →

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

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