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    brrngrbrian's Avatar
    brrngrbrian Posts: 3, Reputation: 1
    New Member
    		  
    #1

    Oct 7, 2009, 08:27 PM
    What is wrong with my wood furnace damper?
    When I got to reload wood I open the damper and smoke comes out the fire box door.
    hvacservicetech_07's Avatar
    hvacservicetech_07 Posts: 1,083, Reputation: 75
    Ultra Member
    		  
    #2

    Oct 7, 2009, 08:46 PM

    Do you open the manual damper before opening the door?
    brrngrbrian's Avatar
    brrngrbrian Posts: 3, Reputation: 1
    New Member
    		  
    #3

    Oct 13, 2009, 03:39 PM
    Yes I open the damper all the way a good 30 seconds before I open the firebox door. I just cleaned the chimney and the wood furnace the best I could. I still get the smoke coming out the door when reloading. Please help thank you.
    hvac1000's Avatar
    hvac1000 Posts: 14,540, Reputation: 435
    Heating & Air Conditioning Expert
    		  
    #4

    Oct 13, 2009, 08:25 PM
    In the wood burning industry it is sometimes called puff back. It can be caused by a few different things but usually it has to do with the chimney and the relation to the smoke shelf built into the wood burner. It could also be that your home is running under negative pressure which will cause this puff back condition.
    brrngrbrian's Avatar
    brrngrbrian Posts: 3, Reputation: 1
    New Member
    		  
    #5

    Oct 14, 2009, 04:59 PM
    Thanks for your answer. Do you think it is something to worry about or not? Its not a lot of smoke. I don't understand the negative pressure thing. Is there anything I can do to fix this? Do I need a new furnace? Thanks for all your help.
    ballengerb1's Avatar
    ballengerb1 Posts: 27,378, Reputation: 2280
    Home Repair & Remodeling Expert
    		  
    #6

    Oct 14, 2009, 05:04 PM

    Try opening a door or window and then reload, cheaper than a new fireplace.
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