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0 smoke

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G Waite
G Waite Member Posts: 23
in THE MAIN WALL
Still very new. I was cleaning my furnace today. I replaced my tank filter, checked my screener, and cleaned assembly, changed nozzle. unit calls for .75 70 A I had a .75 80B so I used it. I also noticed that the end cone was loose on the very end I had the burner out. I put it all back togather and fired her she looked nice. I just couldnt get a 0 smoke. I also checked pump pressure with guages 100psi and nice cut off also held pressure. Why no 0 smoke?

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  • heatboy
    heatboy Member Posts: 1,468
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    Change it back..........

    ...to a 70° A.

    There was an error rendering this rich post.

  • G Waite
    G Waite Member Posts: 23
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    0 smoke

    Thank you.
  • Steamhead
    Steamhead Member Posts: 16,843
    edited February 2010
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    That B nozzle

    produces a longer flame pattern than the A, and it's probably either a poor match for the air pattern of your unit, or it's hitting the target wall at the back of the firing zone. The latter will chill the flame and generate smoke. The flame temperature is important- if it's too low, you won't get complete combustion.



    A modern oil burner should produce good combustion efficiency with no smoke whatsoever. If it does make smoke, something is wrong.



    What model boiler and burner do you have? What test equipment are you using? What were the numbers for CO, CO2, stack temp etc?
    All Steamed Up, Inc.
    Towson, MD, USA
    Steam, Vapor & Hot-Water Heating Specialists
    Oil & Gas Burner Service
    Consulting
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