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Flue Gas Temp

I have a Burnham V8 oil fired steam boiler. Above the combustion chamber between sections, the flue chanels are populated with 1000's of protruding heat catching pins.

What might be the temp of the gasses flowing through these pin populated channels?


  • Jamie Hall
    Jamie Hall Member Posts: 15,325
    Depending on where you measure in relation to the active flame, somewhere between upwards of 1500 Fahrenheit and 400 or so.
    Br. Jamie, osb
    Building superintendent/caretaker, 7200 sq. ft. historic house museum with dependencies in New England.
    Hoffman Equipped System (all original except boiler), Weil-Mclain 580, 2.75 gph Carlin, Vapourstat 0.5 -- 6.0 ounces per square inch
  • dlipter
    dlipter Member Posts: 59
    It is about 12" above the flame area up a narrow channel close to the canopy assembly which catches and steers the exhaust gas to the vent pipe where it exits the boiler.
    HVACNUT Member Posts: 3,790
    Depending on the burner, draft and other things, net exhaust stack temperature should be between 350°-450°.
    What does the combustion analysis says the temp is?
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