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Electrical Question - Bathroom Fan / Heater Related

Old 10-25-04, 10:51 AM
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Electrical Question - Bathroom Fan / Heater Related

I am thinking about buying the Broan 659 heater / fan / light combo to install in my bathroom. I only have a 15 AMP circuit running in our bathroom. This circuit powers two canned lights (60 Watts each), a shower light (60 Watts), and two outlets. The specs on this fan state that it is 15 AMP acceptable and that with everything on in the unit it pulls 12 AMPS (or
1472 watts). If I had all three lights on in the bathroom (with nothing else on that circuit) it would pull another 180 watts (or 1.5 AMPS) for a total of 14.5 AMPS (or 1652 Watts). The manual says to install it on a dedicated circuit but doing the math it looks like my situation will be OK? Will it work?
Old 10-25-04, 10:59 AM
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yes
Old 10-25-04, 11:13 AM
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It'll work, but you'll likely flip the breaker a few times. I'd recommend running it a dedicated wire and breaker.
Old 10-25-04, 11:19 AM
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What Otto said.

Circuit breakers have tolerances, no assurance they will pass 14.999 A and trip at 15.001 A. You are at the margins of the wiring and circuit breaker, but it will probably be ok. Be sure you don't plug anything (especially a hair dryer) into the outlet while the heater is on. Can you control light/fan/heater independently? When heater is off, you're fine and can use outlet.
Old 10-25-04, 11:38 AM
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Yea, it can be wired into three seperate switches.. I would like to have it on a seperate circuit but my fuse box is full for one thing and the other is I really don't have an easy way to run a wire to the basement.

Thanks for the replies..
Old 10-25-04, 11:50 AM
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If you havent already bought the Broan I would suggest looking at the Panasonic line of bathroom fans, they are MUCH quieter and MUCH more efficient. All the Broan fans in my house are getting replaced they make a lot of noise and move very LITTLE air. Here is a link to the midsize it draws only .2 amps.



Panasonic WhisperLight


Edit: I see that you are looking for a heater combo, they also have these although they draw more current. The panasonic has a 1400 watt heater.

Last edited by cseyer; 10-25-04 at 11:53 AM.
Old 10-25-04, 12:18 PM
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Thanks for the link but if anything I need something with less current..
Old 10-25-04, 02:45 PM
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I have my heat lamp/vent-light in my bathroom connected to a 15 amp circuit. Some times the heat lamp (on a timer) will trip something and take out it and the vent. Its not a circuit though, i think the timer is bad. Anyways i'm going to rewire it all and switch it over to an empty 20 amp circuit.
Old 10-25-04, 03:15 PM
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Originally posted by tbird2340
Thanks for the link but if anything I need something with less current..
Not if you have a dedicated line / circuit.
Old 10-25-04, 03:21 PM
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Did you read my second post?
Old 10-25-04, 03:35 PM
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No, but if your fuse box is full it might be time to upgrade your fusebox. And to run it to the basement, just follow the wires that are already going to the basement.

Of course, it would be much easier to just put in the Broan on the existing circuit. If it blows the fuse often, then upgrade your fuse box and then run a dedicated line.
Old 10-25-04, 03:41 PM
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I would like to upgrade my box and run a new line but that is a whole other story..

About running a new wire.. That sure sounds easy but the bathroom is on the second floor. I have access to the attic but how would I drop a wire down all the way to the basement with ease? How would I get through the horizontal joises or beams (or whatever they are called that sit on top of the studs)?
Old 10-25-04, 03:52 PM
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You run the new wire in existing conduit.....


Does your house use conduit?
Old 10-25-04, 03:57 PM
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No conduit. 1969 and they wired it like friggin idiots...

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