beeman,
Thanks. The system's not that long been drained and re-filled. The radiators are all less than 2 years old, and the boiler's only a couple of years old as well. The radiator in this room is new.
I would doubt very much that it's all gunked up, especially as the radiator in this room was put in only a couple of months ago. Will have a chat with the engineer (ex father-in-law) about the additives you've suggested though - thanks.
Osem,
Suppose it could be, if it is then it's the only radiator in the house that does it (and they're all the same make). It's driving me mad because it keeps doing it late at night either when I'm
trying to sleep, or when I'm already asleep and then it's loud enough to wake me.
Need to get it sorted. Think I'm going to have to have a word with the ex father-in-law and see if he can recommend anything. Didn't really want to have to go down that route.
Thanks all
