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AnswerHow do heat pumps work?
A heat pump uses a refrigerant cycle to absorb low-grade heat from the air (or ground) and compress it to a useful temperature for radiators, underfloor heating and hot water.
In more detail
Because it moves heat rather than burning fuel, it's far more efficient than a boiler.
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2026 figures, based on Energy Saving Trust, Ofgem & gov.uk data · always confirm with a professional survey.