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Repurpose water pipe as gas pipe

Discussion in 'Plumbing and Central Heating' started by SteveP86, 15 Sep 2017.

  1. SteveP86

    SteveP86

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    Location:
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    Hi there

    I've got a 22mm pipe that runs from the airing cupboard to a drain off outside for the hot water cylinder.

    Soon I want to get a combi fitted in this cupboard and for the gas supply to this cupboard I was wondering if this pipe could be used instead of running a new pipe. This pipe runs under the upstairs floor and drops down the void beside the chimney brest then off to a point outside under the downstairs suspended floor. It passes the actual 22mm gas supply which is piped up to the good old bermuda back boiler so physically connecting it would be a doddle.

    PS

    Both the gas pipe to the back boiler and the tank pipe are both stainless steel (1970s) oh and the pipe will have had standing water in it since the 70s.

    Many thanks for any input

    Regards
     
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  3. Short answer - no

    Long answer - nooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooo
     
  4. ianmcd

    ianmcd

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    the pipes will not be stainless steel , they will be truewell, and no you can not
     
  5. SteveP86

    SteveP86

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    Ok. Is there going to be an issue connecting copper to the existing 22mm truewell gas pipe?

    Ps what is truewell?
     
  6. Dan Robinson

    Dan Robinson

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    Something you want to rip out with extreme prejudice.

    There's an issue with just looking at it the wrong way.
     
    Last edited: 18 Sep 2017
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  7. ianmcd

    ianmcd

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    there was a copper shortage in the 70s and some lunatic came up with a hybrid pipe called truewell, it is the most horrible thing to deal with, your installer will love you.
     
  8. DIYnot Local

    DIYnot Local

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