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Hi- we are in the process of renovating our kitchen. The hot water pipes for radiators had to be moved and now when heat is turned on the pipes bang loudly. By loudly, I mean it sounds someone is breaking down the door with a sledgehammer.It is actually quite frightening and we are getting little sleep. Prior to pipes being moved, we did not have this issue. Contractor says he pitched the pipes properly and we will have to live with the noise, as hot water heating is noisy. I can deal with radiators banging a bit. I could even deal with some noise from the pipes, but not this sledgehammer noise. Contractor is adamant this is the norm. If we didnt have the noise before, why now? Is it possible he did something wrong with the piping? thoughts?
By moved you mean the supply and returns were disconnected, and rerouted? If so you may have air in the lines. If you are able to bleed your rads, that would be the way to go.
By bleed I mean there should be bleeder screws at the top of the rads. Open the screw slowly a half a turn to see if air or water comes out. If it's air, keep open til a stream of water begins, and then close the bleeder. If you have more than one rad, you may have to repeat the process on each one.
Haha! Thanks MrRational. I would assume he (his workers, as he is never there) did the above. I am hoping its just air. Will ask him to bleed out the air and see if that helps. Thx!
LIcenter- thanks. I am utterly clueless about this. Yes, disconnected and rerouted. So, if we bleed the radiators, the pipes should stop banging? The radiators are banging, but does not bother me too much. It's the banging in the walls in the kitchen.
LIcenter- thanks. I am utterly clueless about this. Yes, disconnected and rerouted. So, if we bleed the radiators, the pipes should stop banging? The radiators are banging, but does not bother me too much. It's the banging in the walls in the kitchen.
Agree with McR. By bleeding the pipes at the rads, the banging in the walls should stop and the only noise you should hear are the rads "clinking" a bit as they heat up.
Yes indeed your "contractor" is an idiot, I'm a finish carpenter and I know this.
Is this water or steam? I'm assuming steam since you referenced pitching the pipes. If they are not pitched correctly they will never operate correctly. First thing to do is check the radiators themselves. There should be slight tilt towards the pipe.
In any event you should not be getting any loud banging noises regardless of the sytem.
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