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Pex capacity...

kcopp Member Posts: 4,439
I know I have asked this question years ago... 20 degree delta T &  avg flow rates.

 if 1/2" pex can carry about 15k btu , and 3/4pex about 40K btu.... about how many BTU on 3/8" pex?



  • Ironman
    Ironman Member Posts: 7,379
    3/8 Pex Capacity

    About 1.0 gpm @ just under 4ft. of head and 4fps. velocity = 10,000btu's @ 20deg. Delta T.
    Bob Boan
    You can choose to do what you want, but you cannot choose the consequences.
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