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pex for return

Brad White
Brad White Member Posts: 2,398
So long as the PEX is sized for the flow rate and the temperature/pressure combination is within the stated limits for that PEX and you support it well, I see no reason why it would not work. If you do not have the material already, I would consider PEX-AL-PEX or Fostapex for a more rigid installation.

The overall drooping head loss unless it is kinked, would not add much beyond the same size and flow rate if straight. Think of droops as really graceful but pointless elbows...it will add some resistance but if it was more than 5-10% I would be surprised.
"If you do not know the answer, say, "I do not know the answer", and you will be correct!"

-Ernie White, my Dad


  • Bob Forand
    Bob Forand Member Posts: 305
    Pex on baseboard return

    I am wondering how many of you use pex on return loops for baseboard ? I am wondering how the drooping of the pex will affect the output ? Would you add more return bend hangars ? Still leary, but seen it done on a job...
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