I believe that at least some of our TRVs are on the wrong ends of the radiators. Yes, just one more bodging job in this house (although not by me, I hasten to add)!
I've been aware of this for some years but, as apart from some 'clicking' when the heating comes on, we haven't been bothered by it. However, since we've had a new (and bigger) boiler installed, the 'clicking' has become louder and, in fact, the radiator in the kitchen sometimes sounds like a powerful spin drier on a morning! Fortunately, I can stop the noise by slightly turning that particular TRV.
Consequently, the time has come for me to do something about it. Although I don't think it is doing any damage (please correct me if I'm wrong!) I think we're going to have to have them replaced now.
As I understand it, we can either replace them with 'non-directional' TRVs, or move them to (or put new ones on) the other ends of the radiators. I don't think there is any other option.
Am I right in assuming that, in either case, the heating system will have to be drained?
I've been aware of this for some years but, as apart from some 'clicking' when the heating comes on, we haven't been bothered by it. However, since we've had a new (and bigger) boiler installed, the 'clicking' has become louder and, in fact, the radiator in the kitchen sometimes sounds like a powerful spin drier on a morning! Fortunately, I can stop the noise by slightly turning that particular TRV.
Consequently, the time has come for me to do something about it. Although I don't think it is doing any damage (please correct me if I'm wrong!) I think we're going to have to have them replaced now.
As I understand it, we can either replace them with 'non-directional' TRVs, or move them to (or put new ones on) the other ends of the radiators. I don't think there is any other option.
Am I right in assuming that, in either case, the heating system will have to be drained?