B
Big_les
Hi guys,
Hoping someone can advise on this slightly unusual problem. We have a combi boiler downstairs (Semia Condens). If I run the hot water OR the heating for any length of time, what appears to be the pipes in the bedroom floors upstairs (both rooms) emit a really loud thump sound every few minutes, like someone has hit the pipe with a mallet. It does it on heat up and cooldown alongside the more usual tap tap tap sounds, but what's really weird is that even hours later we will hear this loud thunk occasionally until finally it stops. The only way to avoid being kept awake is to make sure the boiler is off well before we go to bed, and ideally that we don't use hot water (though we can get away with small amounts).
For this to happen without the boiler being on, I presume it must be down to thermal expansion/contraction. But it would be good to get some educated views before I start pulling up floorboards to stick padding under the pipes, though I do realise I may well need to get a plumber in.
Thanks
Hoping someone can advise on this slightly unusual problem. We have a combi boiler downstairs (Semia Condens). If I run the hot water OR the heating for any length of time, what appears to be the pipes in the bedroom floors upstairs (both rooms) emit a really loud thump sound every few minutes, like someone has hit the pipe with a mallet. It does it on heat up and cooldown alongside the more usual tap tap tap sounds, but what's really weird is that even hours later we will hear this loud thunk occasionally until finally it stops. The only way to avoid being kept awake is to make sure the boiler is off well before we go to bed, and ideally that we don't use hot water (though we can get away with small amounts).
For this to happen without the boiler being on, I presume it must be down to thermal expansion/contraction. But it would be good to get some educated views before I start pulling up floorboards to stick padding under the pipes, though I do realise I may well need to get a plumber in.
Thanks