Cutting concrete floor containing PEX radiant heat lines

Discussion in 'Plumbing Forum, Professional & DIY Advice, Tips & ' started by Spireman, Apr 28, 2013.

  1. Spireman

    Spireman New Member

    Messages:
    3
    Location:
    Ohio, USA
    I have a 2300 sq ft unfinished basement that has a hydronic radiant heating system. I want to add an in-law suite with 2 bedrooms and 2 bathrooms and a kitchen. Cutting into concrete containing PEX tubing is obviously problematic. I could use flush up systems but putting showers or tubs on risers doesn't appeal to me. I want the plumbing done right and I don't want to destroy the radiant heating system. Replacing the radiant heat with forced air would be a last resort. I know PEX can usually be repaired but can it be after it's been cut through in concrete? I welcome any ideas and suggestions on how to proceed without destroying the radiant heat.
  2. LLigetfa

    LLigetfa DIYer, not in the trades

    Messages:
    3,826
    Location:
    NW Ontario, Canada
    I once saw a video where they tunnelled under the floor from the outside. I think it was Bob Vila.

    You might be able to use a thermal imaging camera to locate where the lines run to then plan where to make the cuts.
  3. Spireman

    Spireman New Member

    Messages:
    3
    Location:
    Ohio, USA
    Thanks, Lligetfa. Thermal imaging is a great idea. Maybe, with some luck, the lines will be parallel with the sewage pipe which would make the job less of a problem, though I would still have to take it slow in places.
  4. Spireman

    Spireman New Member

    Messages:
    3
    Location:
    Ohio, USA
    Anyone else have any suggestions?
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