My radiators are served by a communal boiler in an apartment building. One of them makes a tick, tick, bang (pause), tick, tick, bang (pause), noise that sounds like it's coming from the point where the pipe leading into the radiator meets the radiator. The noise lasts for maybe 5 minutes, stops for several minutes, and starts up again. Sometimes jiggling the pipe gets the noise to stop temporarily. The people who maintain the heating system say that, since the noise occurs even when my radiator is turned off, it must be coming from the riser pipe that connects my radiator to the communal boiler. (And they say this would be too difficult to fix.) But I suspect it's thermal expansion and contraction at the joint of my pipe and radiator. (The pipe is hotter than the radiator when the radiator is turned off.)
If the noise was from the riser pipe, shouldn't I hear it in the wall where the pipe is rather than in my radiator? And why would noise from the riser pipe affect just one of two radiators that are connected to that pipe?
I'd really appreciate any advice.
If the noise was from the riser pipe, shouldn't I hear it in the wall where the pipe is rather than in my radiator? And why would noise from the riser pipe affect just one of two radiators that are connected to that pipe?
I'd really appreciate any advice.
(sorry poor attempt)
