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    frankpetersen's Avatar
    frankpetersen Posts: 1, Reputation: 1
    New Member
    		  
    #1

    Jan 24, 2018, 08:57 AM
    Our Margas 36 direct vent is burning very yellow.
    How do I increase the air flow to the burner to get a more efficient blue flame?
    talaniman's Avatar
    talaniman Posts: 54,327, Reputation: 10855
    Expert
    		  
    #2

    Jan 24, 2018, 10:22 AM
    Are your vents, both outside and inside clear? Marco direct vent fireplaces has gone out of business and taken over by Lennox. You should contact a dealer near you for information. According to Lennox, any vent adjustments should be done by them, so very little information is available.

    No owners manual found. Sorry.
    ma0641's Avatar
    ma0641 Posts: 15,675, Reputation: 1012
    Uber Member
    		  
    #3

    Jan 24, 2018, 09:36 PM
    If it is a direct vent, make sure the outside inlet is clear. I have seen mud dauber and paper wasp nests in the housing.
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