Flapper At Combustion Chamber Door Bottom PF100

Ejectr Posted By Ejectr, Oct 14, 2012 at 8:37 PM

  1. Ejectr

    Ejectr
    Minister of Fire

    Nov 1, 2009
    565
    54
    Loc:
    Brimfield, MA
    My PF100 pellet furnace has what appears to be a small damper flapper at the bottom outside of the combustion chamber door bottom. Why is that there?
     
  2. Ejectr

    Ejectr
    Minister of Fire

    Nov 1, 2009
    565
    54
    Loc:
    Brimfield, MA
    Got the answer by emailing Harman:
    It supplies additional combustion air to the firebox and also creates an air wash for the glass in the ash door. Most of the combustion air is supplied through the back draft damper on the rear of the feeder body.
     
  3. Ronlec

    Ronlec
    New Member

    Feb 9, 2016
    1
    0
    Loc:
    Nashua
    The little damper on mine wore out after the first three seasons. It was flapping a lot because of the 'normal' Harman air pulsing. Harman said that they don't make that part any more and to just put a piece of metal tape over the opening and cut a slit in it to allow some air flow. Seems odd.
     

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