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MOONSTRUCK
MOONSTRUCK Posts: 2
edited July 2023 in Solar

Existing copper piping in a solar system with tank & accumulator .

Thinking of repairing with pex , where accessible

Comments

  • Jamie Hall
    Jamie Hall Posts: 27,922
    Watch your temperatures. Remember that PEX gets real floppy when it gets to warm, and the bursts when it gets even warmer. What is the absolute maximum temperature those pipes can reach?
    Br. Jamie, osb
    Building superintendent/caretaker, 7200 sq. ft. historic house museum with dependencies in New England
    Zman
  • Robert O'Brien
    Robert O'Brien Posts: 3,611
    Not for this application! Not rated for temperatures
  • Larry Weingarten
    Larry Weingarten Posts: 4,206
    Hi @MOONSTRUCK , What type of solar collectors do you have? Are they the typical copper collectors in an insulated, glazed box?

    Yours, Larry
  • hot_rod
    hot_rod Posts: 28,582
    Stick with copper or other metallic piping

    A slug of solar fluid at 309F can cause the pex or a connection to fail
    Bob "hot rod" Rohr
    trainer for Caleffi NA
    Living the hydronic dream

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