I have a Glow Worm 30cxi combi (yes I know!), and budget Caleffi TRVs.
When everything heats up, the TRVs make a loud hissing sound. They are all set to 5/max.
Would changing to a different make of TRVs reduce this noise? If yes, which are the quietest? Are there other things I should be doing as well?
When everything heats up, the TRVs make a loud hissing sound. They are all set to 5/max.
Would changing to a different make of TRVs reduce this noise? If yes, which are the quietest? Are there other things I should be doing as well?