Heat pump hot water: when to heat your cylinder (and when not to)
Hot water is the easiest load to shift on a time-of-use tariff — and the most valuable. A 200-litre cylinder reheated during a cheap window at 14p/kWh instead of the 24.7p standard rate saves the cost difference on every single litre, every single day. This guide covers how heat pump hot water works differently from a boiler, why timing matters, and how to set a schedule that captures the saving without ever running out of hot water.
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Ashley