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Pex Poly Alloy Fittings (PPSU)

Hilly
Hilly Member Posts: 427
I have been looking around for an answer as to whether PPSU fittings can be used in a heating system.
So Apollo says hot and cold water potable only, watts says potable only, Bow states radiant and potable. I'm just starting to looking into this but did manage to call Watts last night will they were still open. The 'tech support' was careful in what he said. 'I can say it was never "tested" for approval on hydronics'. Just curious as to what people thought. Also I'm sure they may not be all made equal either from company A to B to C so that could be a deciding factor in the literature I've come across briefly. Or maybe a Poly-Alloy fittings will not meet O2 barrier requirements, I'm not sure. Hoping somebody else has come across this at some point. I did send a couple of quick notes to companies through their contact us form so if I do hear back I'll certain post the company statements.

Comments

  • kcopp
    kcopp Member Posts: 4,419
    Uponor/Wirsbo ones can.
    I never have attempted to use the Watts ones on heat....and never will.
    SWEIRoohollah