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best glycol and mix for my boiler system?

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  • hot_rod
    hot_rod Member Posts: 27,116

    here is an option for a glycol fill tank. Pump about 3 gallons of glycol into the tank, connect it to the system at the expansion tank.

    So as air comes out you have a reservoir of glycol.

    A fraction the cost of a fill tank system.

    Screenshot 2025-04-25 at 8.13.32 AM.png Screenshot 2025-12-17 at 9.20.14 AM.png Screenshot 2025-12-17 at 9.24.52 AM.png
    Bob "hot rod" Rohr
    trainer for Caleffi NA
    Living the hydronic dream
  • clydesdale
    clydesdale Member Posts: 84

    Hmmm, I am not sure how that works. Can you break that down for me a bit more? Sorry. Thanks!!!!!!!!

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