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Hot Water Boiler

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Bob C._2
Bob C._2 Member Posts: 31
in THE MAIN WALL
Replacement Hot Water Boiler-with cast-Iron Radiators 2 pipe

Boiler is piped reverse return-Radiators on second floor do not seem to want to get hot-bleed and bleed -but get mostly water-first floor is hot

System has grundfos 26-99 pump on return

Any Thoughts-suggestions would be appreciated

System pressure is 20#

Comments

  • kcopp
    kcopp Member Posts: 4,629
    Sounds like....

    a gravity conversion. How is the near boiler piping. the 26-99 is WAY too big. more like a 15-58 on low speed/ spd1.
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