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Old 02-07-2012, 06:33 AM   #1
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install ceiling box for fan while drywall is off


Been wanting to install a ceiling fan in living room but there is no ceiling box. Had to take some drywall off one of the walls for an unrelated issue so figure now is the time to run wire before closing it back up.
Looking at the picture the fan box would go near the X on the ceiling. There is a single switch not shown in the photo all the way to the right of thephoto where the black arrow is. This switch controls the top half of the receptacle below the window. In the single switch box there is power and neutral wires.

How to proceed?
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Last edited by collegetry; 02-08-2012 at 06:25 AM.
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Old 02-07-2012, 07:41 AM   #2
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install ceiling box for fan while drywall is off


Id install a full size pan box where you want the fan to go,if theres not a rafter right there double up a couple 2x4s on edge and put them between the 2 nearest rafters to mount your box.
I usually run 14/3 from switch box to ceiling box in case you want to seperate light/fan.
Rewire the 1/2 switched plug in wall so you can just have a normal hot plug there all the time

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Old 02-07-2012, 07:46 AM   #3
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install ceiling box for fan while drywall is off


You said "In the single switch box there is power and neutral wires." Does that mean you only have a black and white wire? If you only have black and white then you do not have a neutral wire. You need a new cable or you will need to rewire the receptacle to be not switched so the cable can be used as a feed.
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Old 02-07-2012, 07:59 AM   #4
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install ceiling box for fan while drywall is off


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Originally Posted by plummen View Post
Id install a full size pan box where you want the fan to go,if theres not a rafter right there double up a couple 2x4s on edge and put them between the 2 nearest rafters to mount your box.
I usually run 14/3 from switch box to ceiling box in case you want to seperate light/fan.
Rewire the 1/2 switched plug in wall so you can just have a normal hot plug there all the time
plummen I know the ceiling joists run out or perpendicular to the window like the photo. If they didnt I would not even try this on my own. Figure if I can hit the right joist cavity from the double top plate I can run the wire in that joist cavity to a fan rated box. If the ceiling joists were running parallel to the window, then I wouldnt contemplate this probably.

And are you suggesting using the existing switch, which now operates the top of the receptacle, to operate the fan? I guess I could replace the single switch with a double switch to operate the fan/light separately.

And to joed: in the single switch box there is not a switch loop, there are hots and neutrals(and grounds)
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Last edited by collegetry; 02-08-2012 at 06:24 AM.
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Old 02-07-2012, 10:17 AM   #5
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install ceiling box for fan while drywall is off


Don't eliminate the switched outlet just yet to reuse that switch for the fan. Do you have room where your single switch is to add a double gang box and add a new switch for the fan?
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Old 02-07-2012, 10:44 AM   #6
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install ceiling box for fan while drywall is off


I would not use a pancake box, I would use a fan rated box screwed to the stud or a 2x4 installed just for mounting the box. Now is the time to do it. Run a 3 conductor NM cable up there to. Wire it so the fan and the light can be operated independently. This will be easy as you say you have a hot and a nuetral in the existing switch box.
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Old 02-07-2012, 12:15 PM   #7
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install ceiling box for fan while drywall is off


what about this box by westinghouse rated for ceiling fans. I will be able to secure it right into a joist.
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Old 02-07-2012, 02:27 PM   #8
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install ceiling box for fan while drywall is off


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what about this box by westinghouse rated for ceiling fans. I will be able to secure it right into a joist.
Perfectly fine. We use them all the time.
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Old 02-07-2012, 03:24 PM   #9
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install ceiling box for fan while drywall is off


I like those too but I use longer screws.
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Old 02-07-2012, 03:29 PM   #10
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I like those too but I use longer screws.
good call on the longer screws. I'll post some photos when we get stuff run. I have room on the wall where the single switch is to put a 3 gang box. This way I can have one switch for the outlet still, one switch for the fan and one for the light on the fan
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Old 02-07-2012, 05:01 PM   #11
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install ceiling box for fan while drywall is off


Great. I like having the separate wall switches for my fan and lights
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Old 02-07-2012, 10:13 PM   #12
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install ceiling box for fan while drywall is off


Quote:
Originally Posted by joed View Post
You said "In the single switch box there is power and neutral wires." Does that mean you only have a black and white wire? If you only have black and white then you do not have a neutral wire. You need a new cable or you will need to rewire the receptacle to be not switched so the cable can be used as a feed.
If he rewires that half switched plug like I said he'll have his power/neutral wires for the circuit.
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Old 02-07-2012, 10:22 PM   #13
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install ceiling box for fan while drywall is off


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Originally Posted by J. V. View Post
I would not use a pancake box, I would use a fan rated box screwed to the stud or a 2x4 installed just for mounting the box. Now is the time to do it. Run a 3 conductor NM cable up there to. Wire it so the fan and the light can be operated independently. This will be easy as you say you have a hot and a nuetral in the existing switch box.
Why wouldnt you use a full size pan box?
The full size boxes are rated for fans
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Old 02-07-2012, 10:24 PM   #14
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install ceiling box for fan while drywall is off


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what about this box by westinghouse rated for ceiling fans. I will be able to secure it right into a joist.
That would be the pan box I was referring too,they come in small and large sizes
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Old 02-08-2012, 07:02 AM   #15
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install ceiling box for fan while drywall is off


We're gonna go with the westinghouse 1/2" pancaker cut into the ceiling and attached to a joist.
Plan is to cut in a new 3 gang box where the single switch is.
Drop 12-3 down into the basement, across a few feet to get to the left of the duct run shown in the photo.
Then run the 12-3 back up in the stud cavity just to the left of the duct run then thru the cripples above the header into a hole in the double top plate and then have fun fishing the 12-3 thru the ceiling joist cavity to the cutout where the pancaker will go.

Will post photos.


Last edited by collegetry; 02-08-2012 at 12:08 PM.
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