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Old 06-29-2010, 09:09 AM   #1
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Wiring Exhaust Fans


I have 2 bathrooms in which I have to replace exhaust fans. The bathrooms are close in the house, and share an attic access (or they are close enough). I'm wondering if I can use one power source and connect each fan (I guess I would be splicing a wire from the power source to each fan) or if this would somehow result in less power to each. Intuition tells me it should be fine--like connecting 2 lights to the same source. Lack of experience tells me I should ask.... thanks for any help.

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Old 06-29-2010, 09:13 AM   #2
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Wiring Exhaust Fans


A shared circuit would work if these are standard exhaust fans. If they are the fan/heater combo type then you would need a dedicated circuit for each fan.

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Old 06-29-2010, 09:28 AM   #3
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Wiring Exhaust Fans


Deleted. Wrong information.

Last edited by J. V.; 06-30-2010 at 10:07 AM.
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Old 06-29-2010, 09:41 AM   #4
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Wiring Exhaust Fans


Quote:
Originally Posted by J. V. View Post
Bathrooms should have one 20 amp circuit per bathroom. This is an NEC requirement for new construction
Did this change somehow ?

One 20a circuit that feeds erverything in ONE bathroom
OR
One 20a circuits that feeds outlets only in multiple bathrooms

Myself I prefer one 20a to outlets only in each bathroom

What circuit are you tapping into to power these ?
What is already on that circuit ?
Will each have its own vent path ?
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Old 06-30-2010, 10:09 AM   #5
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Wiring Exhaust Fans


Quote:
Originally Posted by Scuba_Dave View Post
Did this change somehow ?

One 20a circuit that feeds erverything in ONE bathroom
OR
One 20a circuits that feeds outlets only in multiple bathrooms

Myself I prefer one 20a to outlets only in each bathroom

What circuit are you tapping into to power these ?
What is already on that circuit ?
Will each have its own vent path ?
Dave, Nothing has changed as far as I know. Let me double check and see what the requirement is. Thanks for catching it.
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Old 06-30-2010, 10:18 AM   #6
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Wiring Exhaust Fans


The 20 amp per bathroom only applies to receptacles. Lights and fans can be on any circuit.

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