Cutting concrete floor containing PEX radiant heat lines

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Spireman

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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.
 

LLigetfa

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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.
 

Spireman

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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.
 
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