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Old 09-11-2009, 01:09 PM   #1
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Add bathroom fan?


Hi all,
At present my master bathroom does not have a vent, it relies on a window for ventilation. In the ceiling there is a switched light. I would like to replace this light with a bathroom fan. I am comfortable installing the fan and dealing with the ducting out of the attic. I would like to know if it is ok for me to simply remove the light that exists and replace it with a fan using the existing wiring? What do I need to check to see if this is ok? I am fine with having the light and fan coming on together.

Thanks,
B

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Old 09-11-2009, 02:45 PM   #2
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B- you should be fine. The only problem you could have is if that circuit was near maximum capacity and then the added draw of the fan could cause the breaker to trip. But that seems very unlikely. Most bath fans draw don't draw much power. Do you know how many lights and outlets are on the circuit?

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Old 09-11-2009, 02:48 PM   #3
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Add bathroom fan?


yeah it should just be two wire like the light was. Check the circuit out but more then likely your fine
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Old 09-11-2009, 02:51 PM   #4
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While your in the attic how hard would it be to drop another line into the wall and put in a double switch box? that way they dont have to both be on at the same time.
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Old 09-13-2009, 03:17 PM   #5
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WORK, WORK that all a DIY guy good for. (his wife speading to her
girl friend) humor

b corwin

14-2/ground romex or 12-2/ground romex, you have a circuit that
went to a ceiling mounted bathroom light.

Now you want and exhaust fan, very good, if there a bath/shower
in this room. If not I would just use a light match, to clear the air, and not bother. (more humor)

Okay that me, and this is you. A true DIY, that will to crawl into a hot
attic and install the exhaut vent. Good for you. (humor)

Try to get a remodeler type, exhaust fan/light combo, if you can.

One last thing, something I alway do. Before installing anything into
a ceiling, I alway power up the light and exhaust, just to make sure
they work, and it helps to I.D. all the circuit wires.

GOOD LUCK WITH YOUR PROJECT, work safe.

Last edited by user62257; 09-14-2009 at 03:08 PM. Reason: spelling
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Old 09-17-2009, 11:40 AM   #6
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Thanks guys, I'll have a go at it

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