No really apparent close to the boier, but the noise comes from the pipes and rads all over the house. Is it possible to alter the speed of the pump and get rid of the noise that way?
Or is it just what they do? I remember other pumps making a noise but they were a low, deeper hum, this noise is quite unpleasant.
Or is it just what they do? I remember other pumps making a noise but they were a low, deeper hum, this noise is quite unpleasant.