Jillian Ambrose’s interesting articles on heat pump myths (Do heat pumps work at freezing temperatures? 22 May) have not yet mentioned the noise that a single heat pump can generate, and the implication once large swathes of communities start using them.
We stayed at a new-build property in Suffolk last summer, where all eight or so properties had heat pumps. We had to shut the windows in hot conditions as heat pumps went on and off all night, each with its own start-up and switch-off frequency and whine. If you sat in the garden in the evening, it was an annoying, continual source of noise.
