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Airhead
@J0nathan
With CH on, this (new, along with another vertical and two horizontal column rads) is making dripping, flowing type noises - the others are almost completely silent, other than when the heating first comes on or goes off. The system has been bled for air several times. I can only assume that there is still air trapped in the radiator or elsewhere in the system and I should keep bleeding it, even though it is just water coming out at this point, until the noise stops?
EDIT: Have bled the other vertical radiator again which, going by the pitch of the noise as I bled it, does still have air in it, even though there was a constant flow of water. This has reduced the noise coming from the first vertical rad. I think this is going to be an iterative process...
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