pex and steam heat

Discussion in 'Plumbing Forum, Professional & DIY Advice' started by arturofitz, Jan 18, 2010.

  1. arturofitz

    arturofitz New Member

    Jan 18, 2010
    I have a steam boiler I want to put another zone in my basement .I put a ciculating pump on The pex that I bought has an oxygen barrier and is for base board heat HOWEVER I just noticed that it is rated for 180F and I am sure that my steam boiler puts the water hotter than that IS there a PEX rated for steam???
  2. johnjh2o1

    johnjh2o1 Plumbing Contractor for 49 years

    Aug 9, 2009
    Are you using a heat exchanger? If not then all your piping must be well below the water level in the boiler.

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  4. nhmaster

    nhmaster Master Plumber

    Jul 30, 2008
    Tech. Instructor
    S. Maine
    Short answer is no, you can't use pex.
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