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Any harm in too much air?

Post in 'The Pellet Mill - Pellet and Multifuel Stoves' started by guitarjamman, Dec 12, 2013.

  1. guitarjamman

    guitarjamman New Member

    Sep 26, 2013
    Central MA
    I know having the damper shut too far will produce a lazy and dirty flame, but what risks do you run with the damper too far open? Can this also cause a creosote build up?

    I am waiting on my mag gauge but want to err on the side of caution while I await its arrival.

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  2. briansol

    briansol Minister of Fire

    Jan 18, 2009
    central ct
    too far open tends to produce the cleanest burn, but not the hottest. plus, you risk the 'blow out' factor.

    I find I burn about 30% more pellets at wide open vs 15% closed. after 15% closed, the flame gets lazy on higher settings.
  3. iceguy4

    iceguy4 Minister of Fire

    Nov 16, 2011
    Upstate, NY
    also extra air must be heated before it goes up the chimney . even if you supplied the exact amount of oxygen for complete combustion ...you already pay the penalty of 79% nitrogen being heated and sent up the chimney

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