When I'm feeling thrifty.... I often hit say a master, guest, and powder room with one circuit for just the recepticals. Lighting on an adjoining room if loads allow. Anything wrong with that?
210.11(C)(3) Bathroom Branch Circuits. In addition to the number of branch circuits required by other parts of this section, at least one 20-ampere branch circuit shall be provided to supply the bathroom receptacle outlet(s). Such circuits shall have no other outlets. Exception: Where the 20-ampere circuit supplies a single bathroom, outlets for other equipment within the same bathroom shall be permitted to be supplied in accordance with 210.23(A). FPN:See Examples D1(A), D1(B), D2(B), and D4(A) in Annex D.
Or have I read this wrong?
Mark Heller "Well - I oughta....." -Jackie Gleason
I know that where I come from (Cedar Rapids, Iowa) you cannot have wiring from the basement (etc) additionally serving another floor, stairs exempt. It is a mod the city added to the NEC. (Sidenote: A nice thing they also added is that panels in a residence cannot be closer than 6" to a corner. Makes for easier access) Edited for better wording.
[This message has been edited by trobb (edited 07-14-2006).]
Re: How many bathrooms on one circuit?#99087 07/14/0611:18 AM07/14/0611:18 AM
I am quite familiar with the practice of having all bath receptacles, in all baths, on one circuit, protected by a GFI receptacle in the first bath the cirrcuit reaches. "Economy" is always cited as a reason for this.
I question that reasoning.
Sure, it makes sense in tract homes of the "1970's" style. In those homes, the design usually had all the plumbing grouped together, so baths were either back-to-back or directly above one another.
Yet, I have just come from a new home in the "Courtyard" style. This style has the rooms arranged in a box, around an inner courtyard. There were five baths, including eight receptacles , scatttered around this square, and on two levels. One GFI receptacle protected them all.
That is a lot of wire to loop around, up, and down. Apart from the wire cost, there is the labor involved. Compare that to using a multi-wire branch circuit, with one leg for the neighboring room, and one for the bath- and each bath having its' own GFI.
Since, in realtive terms, the cost of GFI's has dropped- I think saving $$$$ by eliminating $10 devices is often false savings!
(This can also be another reason in favor of AFCI devices!)
Re: How many bathrooms on one circuit?#99090 07/14/0607:26 PM07/14/0607:26 PM
Actually, John - and I should have clarified - what I meant was that the GFCI device would be in a downstairs (maybe basement level) bathroom with no other loads feeding receptacles in other bathrooms. I despise doing it like that but my boss demands it because of $$$. At the very least, elimanate the line-load design and install devices in each bathroom to avoid the nuisance of going down flights of stairs in order to reset the GFCI.