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Thread: Can ceiling fan be mounted on the extension box ?

  1. #1
    Join Date
    Feb 2015
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    United States
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    Can ceiling fan be mounted on the extension box ?

    Basically this is the situation, old residential building, old wiring that is a fire hazard, the owner doesn't want to do major renovations so we going to abandon the old wiring and run new surface mounted conduits with new outlets and light fixtures i know its ugly but this is what the owner wants. Now in one of the rooms in the apartment there is a ceiling fan that is mounted to the box that is mounted to the beam in the ceiling, so can i mount an extension box to the existing box and then mount the fan on the extension ?

  2. #2
    Join Date
    Jun 2016
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    Tampa, FL, USA
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    You can't use a standard extension box. They are not fan rated. You can use a Wiremold fan box mounted over the existing box.

  3. #3
    Join Date
    Jun 2003
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    Hawthorne, New York NEC: 2014
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    3,970
    Here you go- https://www.garvinindustries.com/ele...es/54171-fannb

    Mount it over the old box and run screws through the old box into the beam.

    -Hal

  4. #4
    Join Date
    Feb 2015
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    United States
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    Got it, thank you for your responce.

  5. #5
    Join Date
    Dec 2006
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    Chapel Hill, NC
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    You can also use any type box and attach the fam bracket to the wood, not the box and you will be compliant.
    They say I shot a man named Gray and took his wife to Italy
    She inherited a million bucks and when she died it came to me
    I can't help it if I'm lucky



  6. #6
    Join Date
    Jul 2003
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    New Jersey
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    As Dennis stated you can just support the fan independent of the box and you can use a standard box with an extension box.
    Rob

    Moderator

    All responses based on the 2014 NEC unless otherwise noted

  7. #7
    Join Date
    Dec 2012
    Location
    Placerville, CA, USA
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    Quote Originally Posted by infinity View Post
    As Dennis stated you can just support the fan independent of the box and you can use a standard box with an extension box.
    Which makes hanging the fan legal, but does not, IMHO, get you immunity from the requirement to use a fan rated box in new installations.
    How this is resolved in remodel/rewire situations may depend on how your AHJ looks at it.

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