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Results tagged with knob-and-tube
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user 5960
For questions about Knob and Tube electrical wiring throughout the home. Sometimes abbreviated as K&T.
1
vote
Is it safe for knob & tube to be touching insulation facing?
In Washington it's completely OK to insulate directly over Knob & Tube wiring as long as it was first inspected, and a sign warning future workers of the hidden wires is placed.
Your question of "touc …
- 11k
7
votes
Is it safe to put insulation next to knob & tube wiring?
The answer changes depending on location.
Because of a complete lack of actual fire incidents, four Western USA States: CA, OR, WA and ID petitioned for an exception to NEC 394.12 and permit insulati …
- 11k
1
vote
Box in knob and tube wiring between ceiling and cellulose?
Nah. You're overthinking this, and the electricians are showing no evidence of thinking at all.
First, measure the wire: is it 14 gauge? 12 gauge? or something in between?
Second, measure the break …
- 11k
1
vote
What should I do about an electrical service panel that is next to the gas service meter?
You'll want to ask PG&E to inspect. They'll come out with a simple phone call for just about anything, this included. Let us know how this turns out.
A different utility writes this as their policy: …
- 11k
1
vote
Running conduit near knob and tube wiring
I make the assumption that knob & tube insulation will fail. Maybe it will, maybe it won't, why take the chance. With stock K&T insulation failure is no problem: the ceramic tubes will outlast any p …
- 11k
33
votes
Should old knob and tube wiring be replaced?
Myths abound about K&T, and lots of it is ripped out unnecessarily.
The K&T wire is exactly as thick as modern wire, and was installed by skilled craftsmen using bulletproof soldered joints rather th …
- 11k
-1
votes
Does MA require permit to replace old K&T and if no how do I know if work is done to code?
No you don't need a permit to pull it out.
Yes you do need a permit to put anything back, almost no matter where you are.
- 11k
1
vote
Why does Knob and Tube need an air gap?
The "air gap" theory is a myth.
The size of wire used for K&T is the same as for modern wire, plus the joints are better.
The real issues are that most knob and tube circuits are undersized for the m …
- 11k
4
votes
Should I use a GFCI or AFCI circuit breaker with knob and tube wiring?
An AFCI is a great addition to K&T wiring. While the conductors in K&T are separated by large distances, and even studs, they do come together at junction boxes which are often metallic. An AFCI adds …
- 11k
7
votes
How can I attach modern fixture to knob & tube wiring?
In this case I would carefully remove any cotton or cloth covering on the existing wires, after shutting off the branch circuit. Hopefully this leaves you with a rubber or plastic layer, but either w …
- 11k