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power burner

mark smith
mark smith Member Posts: 112
in THE MAIN WALL
ALL BOILER MANUFACTURERS HAVE A SPECIFIED DRAFT SETTING

Comments

  • m.weatherbee
    m.weatherbee Member Posts: 8


    ANYONE HAVE ANY INFO ON SETTING BAROMERTRICS DAMPERS ON GAS POWER BURNERS.I HAVE A 4 MILLION BTU POWER BURNER WITH ESESSIVE DRAFT BUT DON'T KNOW WHERE TO SET THE DRAFT . ONLY NUMBERS I HAVE EVERY HEARD ARE - .04 ON RESIDENTAL OIL.NO INFO FROM BOILER MANF OR BURNER MANF.
    ANY IDEAS?
    THANKS
  • m.weatherbee
    m.weatherbee Member Posts: 8


    ANYONE HAVE ANY INFO ON SETTING BAROMERTRICS DAMPERS ON GAS POWER BURNERS.I HAVE A 4 MILLION BTU POWER BURNER WITH ESESSIVE DRAFT BUT DON'T KNOW WHERE TO SET THE DRAFT . ONLY NUMBERS I HAVE EVERY HEARD ARE - .04 ON RESIDENTAL OIL.NO INFO FROM BOILER MANF OR BURNER MANF.
    ANY IDEAS?
    THANKS
  • m.weatherbee
    m.weatherbee Member Posts: 8


    CAN'T FIND IT IN ANY PAPERWORK THEY ONLY GIVE THE POSITIVE PRESSURE RECOMMENED IN FIREBOX. AND BEFORE BOILER DAMPER.
  • Kevin__Flynn
    Kevin__Flynn Member Posts: 74
    Draft

    There was an error rendering this rich post.

  • Steamhead (in transit)
    Steamhead (in transit) Member Posts: 6,688
    That's what you need

    Typically a chimney will develop more draft in cold weather. This can turn a positive-pressure situation into a negative-pressure one if the draft is strong enough. You want to set up your positive pressure as specified and use the barometric to compensate for increased cold weather draft.

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  • Mark Hunt
    Mark Hunt Member Posts: 4,908
    MARK IS CORRECT


    RE-READ HIS POST.

    MARK H

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  • m.weatherbee
    m.weatherbee Member Posts: 8
    thanks guys

  • Blackoakbob
    Blackoakbob Member Posts: 252
    Usually there is a outlet.....

    damper on the boiler that needs to be set per the mfgr's requirements for pressure inside the boiler ( furnace pressure, windbox pressure) a slightly positive pressure to maintain correct circulation thru the boiler first pass and thru the additional heat exchange area (passes) to the exit of the breeching. Then the chimney draft can be addressed by using a barometric, if needed, on a tall stack or none at all on a short stack with a power burner. Best Regards, MIKEY, power burners are alot of fun setting up!
  • Jim Davis_3
    Jim Davis_3 Member Posts: 578


    Barometric settings on most commercial boilers is dependent on the manufacturer and model. Usually if the boiler is positive pressure there is an additional manual damper in the rear of the boiler to set this pressure. The barometric then just assures that this setting stays fix. The idea of a barometric is to maintain the same negative draft pressure at the rear of the equipment under all conditions. This pressure maintain the air setting of the burner. When not controlled the air/fuel mixture at the burner will constantly chain. Some equipment want a positive pressure at the burner and others at the breech. Some equipment requires a negative. Regarless of manufactures specifications, your combustion analyzer will detemine if the barometric setting is correct or acceptable.
  • m.weatherbee
    m.weatherbee Member Posts: 8


    THANKS GUYS YOUR ANSWERS WHERE VERY HELPFUL.NICE TO HEAR AN EXPLANATION THEN JUST A ONE WORD ANSWER THAT DOSEN'T MAKE ANY SENSE.
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