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Forums > Green Building Technologies > Radiant Heating > Subject: PEX or copper for supply/return

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05/14/2005 8:34 PM
I'm getting ready to run my foundation slab PEX. I have three zones and two manifold locations. #1. What are the pros and cons to using 1" PEX for supply and return lines vs. 1" copper? #2. Is it better to run supply and return lines under the slab/insulation or above via ceiling and walls? Thanks

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