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Old 05-09-2009, 05:12 PM   #1
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Bathroom remodel issues


I am in the process of a complete gut/remodel of my bathroom. House was built in the 20's, there was slight upgrades made in the mid 90's before I got it. The wiring going to the lights and switches is a single wire, with a cloth type jacket. I assume this is series, one wire into the fixture one wire leaving. My question is, do all the new outlets, lights, and floor heat strip, need to be wired the same way? Or can I convert it to a parallel system somehow? With the way it is now, there will be no ground wire to anything. Any input or ideas would be great.Thanks,Brian

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Old 05-09-2009, 06:12 PM   #2
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Bathroom remodel issues


Sounds like you have Knob and Tube wiring. Time to update and rewire.

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Old 05-09-2009, 06:26 PM   #3
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Bathroom remodel issues


Agree........most codes do not allow you to add any additional anything to a K&T system. Some don't even allow it to exist when remodel time comes. I agree with the code. K&T wiring is not safe, is too old, is not safe, and it is not safe.
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Old 05-09-2009, 08:55 PM   #4
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Bathroom remodel issues


Knob and Tube can be extended but I wouldn't suggest doing it if your walls are open and new wiring can be installed. Budget's are budget's and I understand that but taking the cheap way out when it comes to wiring and plumbing is bad, bad idea.

As for Code, it is permissible. 2008 NEC 394.10
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Old 05-09-2009, 10:06 PM   #5
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It is permissible but most people don't know the proper way to splice or the required mounting. If it is done it should be done by a qualified electrician. Any mistake could void insurance coverage if there is a fire. Plus Just because NEC permits it doesn't mean all jurisdictions do.

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Old 05-09-2009, 10:30 PM   #6
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Bathroom remodel issues


This is Knob & tube
Does it look like this?

Or is it cloth covered wire with 2 wires in it - no ground ?
That is old NMB
There is also old cloth covered wire with 2 wires & bare ground
Also NMB

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Old 05-10-2009, 08:00 PM   #7
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It looks just like that. Looking into our options on replacement. Options are few to run new wiring to bathroom....crawl space is small under the floor and space between ceiling and roof is like 10 inches. Thanks for the input everyone

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