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Kent_3 Member Posts: 60


  • Kent_3
    Kent_3 Member Posts: 60

    A building contractor told me (a boiler contractor) that ABS pipe is not permissible as exhaust pipe for condensing boilers. I know about hollow-core restrictions, but has anyone heard about ABS restrictions?
  • check

    Best advise is always check the specific equipments installation instructions. Most inspectors and code officials will allow any venting as long as it is listed in the installation book for the specific equipment and model.

    To my knowledge, I have never seen ABS allowed for venting with exception to fresh air intake only. Most often the ones listed are: sch40 DWV,sch80 & CPVC.
  • Kent look at a posting

    I just resurrected titled "no more PVC for venting". Some very intersting information as related to your question.
  • Kent_3
    Kent_3 Member Posts: 60
    Yes, what information, please

    I'm not sure of what you mean, Tim. How can I get to this information?
  • Kent go down the

    list of postings here on this site until you find "no more PVC for venting", click on that article and all the information is there.
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