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Flame opinion?

delcrossv
delcrossv Member Posts: 1,357
edited November 2021 in THE MAIN WALL
I'm attaching 2 photos, one with flash, one without. Unit is a 1960's Weil McLain JB steam boiler. While I know to get something definitive you need a combustion gas analyzer, I'm looking for folks initial opinion. Flame is blue right above the burner and goes to orange the higher one gets. Air controls are almost wide open on the burners.
No black soot on the exchanger but it's all over a pale green (???)
Thanks!

Flash


No flash


Trying to squeeze the best out of a Weil-McLain JB-5 running a 1912 1 pipe system.

Comments

  • SuperTech
    SuperTech Member Posts: 2,430
    My opinion as a service technician is that you should call in a professional to perform a combustion analysis. Especially considering the age of that equipment.  
    PC7060
  • ratio
    ratio Member Posts: 3,795
    Colored flames could be a sign of minerals (dust) in the air. Are you running a humidifier? See https://forum.heatinghelp.com/discussion/179147/dirty-gas for a similar event
    PC7060
  • Jamie Hall
    Jamie Hall Member Posts: 24,884
    Very pretty. That orange flame suggests dust. Now go and find a service technician who can properly measure and adjust the combustion.
    Br. Jamie, osb
    Building superintendent/caretaker, 7200 sq. ft. historic house museum with dependencies in New England
    PC7060
  • delcrossv
    delcrossv Member Posts: 1,357
    Yes, a combustion analysis is obvious. What's with the green scale?
    Trying to squeeze the best out of a Weil-McLain JB-5 running a 1912 1 pipe system.
  • delcrossv
    delcrossv Member Posts: 1,357
    edited November 2021
    ratio said:

    Colored flames could be a sign of minerals (dust) in the air. Are you running a humidifier? See https://forum.heatinghelp.com/discussion/179147/dirty-gas for a similar event

    It's quite dusty. No soot on the exchanger. I have to measure gas consumption vs. burner input rating first. At 660,000 BTU/Hr nameplate input, I should be using 10.637 CFM at the meter.

    I was wondering if it was overfiring, but that would leave soot, yes?

    Room CO is very low. (wall unit with ppm readout.)
    Trying to squeeze the best out of a Weil-McLain JB-5 running a 1912 1 pipe system.

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