Black syrup

sclarke Posted By sclarke, Jan 8, 2012 at 2:29 PM

  1. sclarke

    sclarke
    Member 2.
    NULL
    

    Oct 21, 2011
    17
    0
    Loc:
    Cincinnati, OH
    I just started burning wood and I have an old regular buck stove insert into a masonry chimney. I was up on the roof looking around and noticed a black syrup/sap substance on the top of the chimney, coating the spark arrestor. it has completely lined everything. it is like sap in its consistency and black. any ideas what that could be?
     
  2. oldspark

    oldspark
    Guest 2.
    NULL
    

    Creosote and I would not be burning any more wood until you get that problem fixed.
     
  3. begreen

    begreen
    Mooderator 2.
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    Staff Member

    Nov 18, 2005
    61,358
    7,828
    Loc:
    South Puget Sound, WA
    +1 That chimney needs to be cleaned asap and before any more burning takes place.

    It would also be good to figure out why the creosote accumulation. This could be due to burning too cooling (smoldering fires) or poorly seasoned wood. And often it is a combo of these two that leads to the worst cases of creosote deposits.
     

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