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How long can each 1/2" pex zone be? What about 3/4?

Hey,



What is the maximum length a single 1/2" pex, or 3/4" pex zone? I am installing a hydronic heating system in a 10-6" cement slab for a winery but I can't remember exactly what lengths I am limited too for each zone.

Comments

  • hot_rod
    hot_rod Member Posts: 24,800
    Pex loop length

    The RPA suggests 1/2" 300' @ .6 GPM

    5/8" 400' @ .9GPM and 3/4" 500' @1.2GPM
    Bob "hot rod" Rohr
    trainer for Caleffi NA
    Living the hydronic dream
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