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    Hot Water Boiler (2 Posts)

  • Bob C. Bob C. January 28, 2012 @ 3:06 PM
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    Hot Water Boiler

    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#
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  • kcopp kcopp January 28, 2012 @ 6:05 PM
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    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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