Lighting, Light Fixtures, Ceiling and Exhaust Fans - Bath Ceiling Heater/Fan Question

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Skramy
04-11-08, 02:44 PM
I'm installing a ceiling heater/exhaust fan in my lower lever bathroom.
Inst says it needs a 20A circuit.
I'll use 12 gauge for the heater,
BUT can I use 14 gauge for the fan?
SteveS

pcboss
04-11-08, 02:50 PM
No, all the wiring must be rated for 20 amps. Also all the circuit conductors need to be run together.

If you want the fan switched separately from the heat run 12-3 with ground from the switch to the unit. Red could be heat, black would be the fan.

Do not attempt to bring the power feed into the housing and then run switch legs down to the switches. There is barely enough room when you bring the switched hots into the unit.
Skramy
04-11-08, 03:06 PM
OK. Thanks.
Darn. I was hoping to use up some of my 14gauge on something.
I'm planning to run power to the switch (2-pole switch), then two circuits back up to the unit.
SteveS

pcboss
04-11-08, 03:15 PM
You really are not running 2 circuits up to the fan unit. You are taking 2 switched hots from the same circuit up to the unit.

You also said a 2 pole switch. Commonly you would use 2 single pole switches. Do you mean a duplex switch where 2 toggles are on one mounting strap?