How to install a fan without a box?

[rhamblin]

I need to mount some cieling fans in a warehouse. The cieling fans have a 20" stem, and a cup on the top with 30" of wire hanging out of the top. The conical cup, is causing me confusion. The fans are designed to hang from a j-hook. Which is fine, there are ceiling joists to hang from. But in my mind I either need to splice in a box (like a four square), or come up with SO cord out of the fan to run over to a box to splice. How is this normally done? There aren't any instructions in the fan box I opened. I can knock the center hole of a 4"sq box out and mount the J-hook through that, but simply pushing the conical cup up against a 4" sq box doesn't seem right.

 

[mopowr steve]

Those things get to me too, I've drilled a 1/4" hole through the middle KO of octagon boxes for the j-hook and called it good on a couple occasions.

 

[Lectricbota]

Those things get to me too, I've drilled a 1/4" hole through the middle KO of octagon boxes for the j-hook and called it good on a couple occasions.

:angel::angel: Been there, done that.

 

[rhamblin]

Is there a "proper" way to do this?

 

[ActionDave]

It seems to me that you would use a regular 3-0 box and knock out the center for the hook, just like we used to do with the old fashioned ceiling fans that hung on a hook.

 

[wwhitney]

It seems to me that a backing plate from the manufacturer to close the canopy would be required. Something like the top item in this picture:

Cheers, Wayne

 

[mopowr steve]

Tell that to the manufacturers of these type fans, which typically seem to be like enviro-fans.

 

[rhamblin]

It seems to me that a backing plate from the manufacturer to close the canopy would be required. Something like the top item in this picture:

Cheers, Wayne

But I don't believe this manufacturer makes these caps. Is that a part u can buy separately for any fan?


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[wwhitney]

I don't know, the product pictured is from Monte Carlo Fans, and I just found it doing a google image search for I think "ceiling fan canopy accessories". I imagine you just need the outer diameters to match. So you could measure the outer diameter of the canopy you have, and then try to find a manufacturer that uses a canopy of the same outer diameter but makes a backing plate. Or try to fashion your own backing plate.

Cheers, Wayne

 

[kwired]

Tell that to the manufacturers of these type fans, which typically seem to be like enviro-fans.

They also put in a "safety cable" to hold the fan should it come off the hook, but there is often no practical place to connect it to.