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Old 02-19-2010, 03:34 PM   #1
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Ceiling Fan Installation for Pergola


When the weather begins to warm up a bit I would like to build a deck with an integrated pergola. This will be part of a larger project and the plans have been produced by an architect. We would like to install a ceiling fan into the pergola, but that it turning out to be more complicated than I had anticipated.

There are many UL wet location listed fans available, and of course we'll wire the deck with either UF rated cable or THNN/THWN running through conduit, but what I cannot figure out is what sort of electrical box to use and as such, how to attach the fan the to pergola rafter.

Am I missing something? Are their wet located listed fan boxes? Can I build out a box around the rafter to protect the junction box/connections and then use a pancake box? I know it has been done, I just don't know how people pull it off.

Any help?

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Old 02-19-2010, 03:50 PM   #2
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Ceiling Fan Installation for Pergola


Get your self a octagon bell box and yes if you want go ahead and built a wooden box around the bell box for appearance purposes if you want . those bell boxes come in gray, white, green ,& bronze color most of the big box stores carry them or go to a electric supply house hope that helps. kerry

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Old 02-19-2010, 04:07 PM   #3
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Ceiling Fan Installation for Pergola


I am under the impression that code requires that a fan be mounted to an electrical box specifically listed for use with the fan. That's the problem, I guess, is that I cannot find a box listed for use with a fan that is ALSO listed for use in a wet location.

Am I confused?
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Old 02-19-2010, 04:15 PM   #4
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Ceiling Fan Installation for Pergola


If the box provides the sole support for the fan it must be rated for fan support. A regular weatherproof round box is not rated for fan support.
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Old 02-19-2010, 04:17 PM   #5
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Ceiling Fan Installation for Pergola


Precisely my point. So, what can I do in this situation? Is there an alternate means of supporting the fan? Or a special box for use in this situation?
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Old 02-20-2010, 12:26 PM   #6
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Ceiling Fan Installation for Pergola


Any additional thoughts?
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Old 04-05-2010, 08:44 AM   #7
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Ceiling Fan Installation for Pergola


So, returning to this with hopes that it might regain some interest.

So, if the box is not the sole support, then I can use any box really, right?

So, is it possible to screw the fan directly to the pergola rafter?

Would the following work? Sister a 2x8, maybe 1' in length to either side of the rafter, for appearances and to protect the box, then just use a pancake box attached to the rafter and the attach the fan itself directly to the rafter, would that work?

All of the pergola components will be treated with a solid white stain, but do I need to protect this area more? Should I apply ice and water shield to the top where the three pieces of lumber come together?
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Old 04-05-2010, 09:09 AM   #8
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Ceiling Fan Installation for Pergola


Is there a roof on this thing?
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Old 04-05-2010, 09:11 AM   #9
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Ceiling Fan Installation for Pergola


Quote:
Originally Posted by stubits View Post
So, returning to this with hopes that it might regain some interest.

So, if the box is not the sole support, then I can use any box really, right?

So, is it possible to screw the fan directly to the pergola rafter?

Would the following work? Sister a 2x8, maybe 1' in length to either side of the rafter, for appearances and to protect the box, then just use a pancake box attached to the rafter and the attach the fan itself directly to the rafter, would that work?

All of the pergola components will be treated with a solid white stain, but do I need to protect this area more? Should I apply ice and water shield to the top where the three pieces of lumber come together?
Yes, you may use any box you like if the fan bracket is fastened directly to the structure. Having said that, how are you getting the power to the pancake with your method listed above.
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Old 04-05-2010, 09:24 AM   #10
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Ceiling Fan Installation for Pergola


No, there's no roof, this is a very traditional pergola structure.

My thinking on running the wiring was to notch one of the sistered pieces (not structural) and feed the wire that way.
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Old 04-05-2010, 09:26 AM   #11
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xxxxxx
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Old 04-05-2010, 09:27 AM   #12
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Absolutely, a wet rated fan is much easier to find than a wet rated fan junction box.

Do they make wet rated pancake boxes?
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Old 04-05-2010, 09:32 AM   #13
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Quote:
Originally Posted by stubits View Post
Absolutely, a wet rated fan is much easier to find than a wet rated fan junction box.

Do they make wet rated pancake boxes?
Not that I've ever used. I would suggest using a round weather proof box and run the bracket screws through it into the framing.
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Old 04-05-2010, 09:36 AM   #14
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Ceiling Fan Installation for Pergola


Quote:
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Not that I've ever used. I would suggest using a round weather proof box and run the bracket screws through it into the framing.
Yep.

All I have fans I've installed in pergolas have roofs on them.
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Last edited by jbfan; 04-05-2010 at 09:39 AM.
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Old 04-05-2010, 11:40 AM   #15
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Ceiling Fan Installation for Pergola


Maybe you can find some more info by reading this.

http://www.electriciantalk.com/f29/w...le-fans-12442/

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