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    Rmc7259's Avatar
    Rmc7259 Posts: 7, Reputation: 1
    New Member

    Nov 22, 2005, 09:10 AM
    Musky odor coming from heat vents
    We installed a humidifier to our furnace in February. Could it be causing the musky odor that we periodically get from the vents? What is funny about it is that the smell is not there 24/7 and when it is present it comes more from one or two vents only. If that makes any sense.
    labman's Avatar
    labman Posts: 10,580, Reputation: 551
    Uber Member

    Nov 22, 2005, 10:02 AM
    Rather than causing the problem the humidifier may be providing enough moisture for something to live on contamination in the ducts supplying the vents. I would do my best to clean them. Try full strength bleach on a cloth. Reach as far down the duct as you can. If you have access to the ducts, perhaps take them apart, inspect them, and clean each section the best you can. Wearing rubber gloves will be easier on your hands. You could also call in a professional duct cleaning service. Not sure if they would be what you need. I think they are more into dust removal.

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