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Hot Water boiler-with old cast iron radiators

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Bob C._2
Bob C._2 Member Posts: 33
in THE MAIN WALL
Hot water boiler replacement-with old cast iron radiators-2 pipe

2 story home-2nd floor radiators hot-first floor cold?

system has taco 007 pump

Suggestions?

larger pump?

best way to bleed?

thought air normally went to highest point?second floor

each radiator has manual air evtn-bleed not alot of air there!

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  • furnacefigher15
    furnacefigher15 Member Posts: 514
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    Well...

    If you don't get air, but water, then its not an air problem. It's a flow or balance problem.



    Is this a new system converted from gravity?



    If so, look for restriction plates in the radiator valves on the second floor.



    If this is not a new system, probably a bad pump, or no power to the pump.
  • Paul48
    Paul48 Member Posts: 4,469
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    When

    you re-filled the system, did you bleed from the 2nd floor first?
This discussion has been closed.

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