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  1. #1
    Join Date
    Oct 2019
    Posts
    1
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    Is this hvac vent right?

    Hello, I am currently having my basement finished and I have a few questions about the way the hvac guy installed the vents. I was at work when the guy finished up so I wasnt able to ask him about it yet but I wanted to get some others opinions on this vent. Ive never seen a vent that was made out of fiber board before and was wondering if this is normal practice. All of my vents he installed are fiber board boxes that he made. Ive always seen metal vents for the hvac but Im also not in the construction field so I really have no clue. Another question is, if this is normal, does anyone know how the drywall will go around it. Should the drywall be cut to the outside diameter of the vent (like electrical boxes or metal duct work) or to the inside diameter which would leave the fiber board resting on the inside of the drywall. Hopefully I can get some insight to this because I cant seem to find any other info about vents done like mine are. Thanks in advance for any and all advice.

  2. #2
    Join Date
    Nov 2006
    Location
    Southeastern Pa
    Posts
    32,180
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    I think you mean ducts, not vents.

    In some areas, fiberboard ducts are common.

    Your best source of answers will be your HVAC company.
    [Avatar photo from a Florida training accident. Everyone walked away.]
    2 Tim 3:16-17

    RSES CMS, HVAC Electrical Specialist
    Member, IAEI

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  3. #3
    Join Date
    Sep 2008
    Location
    VA
    Posts
    3,744
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    Sounds like your hvac guy didn't finish his job. The boots are to be secured with a flange before the drywall is installed.
    "The only true wisdom is in knowing you know nothing" Socrates

  4. #4
    Join Date
    Dec 2002
    Location
    in a house, Appomattox, Va.
    Posts
    4,772
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    never heard of ductboard boots, the duct work can be db. even on db, the boots are usuaully metal
    Col 3:23


    questions asked, answers received, ignorance abated

  5. #5
    Join Date
    Mar 2010
    Location
    Woodbridge, VA
    Posts
    263
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    Quote Originally Posted by billygoat22 View Post
    never heard of ductboard boots, the duct work can be db. even on db, the boots are usuaully metal
    We used to get them from our local sheet metal supplier. Lyon Conklin (Ferguson) used to stock them back in the day.

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