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Old 06-06-2012, 03:43 PM   #1
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Ceiling junction boxes


I have two junction boxes in the ceiling of the bathroom. They are both 20/20 boxes.

These are just there because the metal conduit converged there and from there I run conduits to the switches and back, then run to the fan, the recessed lights, the scones etc...the other box is also there to facilitate wires passing through so we can have switches in the front of the home for the security lights in the backyard.

Both boxes are not located about 9" from the edge of the wall, 5" apart.

I was thinking initially to just use a circular or rectangular mud ring on them, and after sheetrock is up, to put on blank covers.

But now I am thinking, may be I can wire in a smoke detector there?

Is there any advantage to having a smoke detector that is hard wired?

Or the battery ones are easier?

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Old 06-06-2012, 04:27 PM   #2
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Ceiling junction boxes


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Originally Posted by miamicuse View Post

But now I am thinking, may be I can wire in a smoke detector there?

Is there any advantage to having a smoke detector that is hard wired?

Or the battery ones are easier?
Don't put a smoke alarm in the bathroom... the steam from a shower with ionize the air and set off the alarm...

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Old 06-07-2012, 02:03 AM   #3
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Ceiling junction boxes


What is a 20/20 (and the other numerically named, i.e. 1900, etc.) box?
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Old 06-07-2012, 05:59 AM   #4
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Ceiling junction boxes


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Originally Posted by stickboy1375 View Post
Don't put a smoke alarm in the bathroom... the steam from a shower with ionize the air and set off the alarm...
Years ago, I was required to install smoke detectors in hotel bathrooms by the local fire inspector. To this day I wonder how many false alarms the fire department has had to respond to.
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