hello, me again
in the process of ripping down my vestibule to partition off for a new hallway and have come across 3 15mm copper pipes inside... pretty sure 2 are for heating - flow and return( they get hot when heating on) not sure what the other one is, i need to re-route these but don't wanna open up a big can of gas flavoured worms.... any advice appreciated
thanks

Could be anything you'll need to trace it

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does the third one get hot?
could be anything as thescruff says I have 3 like that coming down from upstairs into my kitchen, except one of them is fatter than the other two and goes into the gas meter under the stairs...
also have another one going to an outside tap out the front

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he he, kinda thought that were coming................ thanks all the same. time to rip some floorboards up methinks...

its at front of house away from all waterworks at back, but nearish the gas meter, doesn't get hot at all..... the radiators are all on microbore pipes so where these 15mm pipes come from i dunno, must be under floor?
strange house....

Is there water in that area.

15mm is not very large for a gas pipe, and certainly well under for modern boilers, so may feed a gas fire or something.

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thanks mr scruff, got plumber round today, it was my old gas pipe--- had it replaced to 22mm when i moved in but the guy left the old pipework in:) gone now cheers