Heat pumps: the eight questions we answer in almost every survey

Heat pumps are not complicated when explained properly, but they do require sound design choices around heat loss, emitters, controls, and usage habits.

On noise: modern air source heat pumps are significantly quieter than older models. A well-positioned unit is typically no louder than a fridge. The engineering considerations — distance from windows, boundary walls, and acoustic barriers — are worth discussing at survey stage.

On radiators: most UK homes can be upgraded to work well with a heat pump without replacing every radiator. The key is sizing the heat pump to deliver lower-temperature water more efficiently, not trying to force high-flow temperatures through undersized emitters.