Knob & Tube Wiring - Electrical - DIY Chatroom Home Improvement Forum

Go Back   DIY Chatroom Home Improvement Forum > Home Improvement > Electrical


Thread Tools Display Modes
Old 02-05-2014, 11:13 AM   #1
Join Date: Feb 2014
Posts: 3
Rewards Points: 10

Knob & tube wiring

My whole second floor is ran by knob and tube wiring
I recently put a new electrical panel in after rewiring my kitchen. My question is what amp Circuit breaker should I use for that old knob and tube wiring that's running my whole second floor


criplove is offline   Reply With Quote
Old 02-05-2014, 11:28 AM   #2
Electrical Contractor
jbfan's Avatar
Join Date: Jun 2004
Location: Newnan GA
Posts: 7,031
Rewards Points: 658

I would use a 15 amp and make the top floor a priority in rewiring.


"The problem isn't that Hillary Clinton lies. We all know she lies. The problem is that her supporters don't seem to care"
jbfan is online now   Reply With Quote
The Following 5 Users Say Thank You to jbfan For This Useful Post:
criplove (02-05-2014), PaliBob (02-07-2014), sleepyg (02-06-2014), ToolSeeker (02-05-2014), Windows on Wash (02-05-2014)
Old 02-07-2014, 11:46 AM   #3
dmclean701's Avatar
Join Date: May 2013
Posts: 205
Rewards Points: 152

I have a related question. On old 1940's K and T was there a standard gauge for wiring outlets or lighting? Did the wire have any marking or would you just have to measure the actual wire diameter to find out what gauge you have?
dmclean701 is offline   Reply With Quote
Old 02-07-2014, 11:50 AM   #4
Licensed electrician
Join Date: Sep 2007
Location: Maryland
Posts: 10,869
Rewards Points: 1,892

Typically #14 same as today, but the best way is to measure with a wire stripper.
Answers based on the National Electrical Code. Local amendments may apply. Check with your local building officials.
Jim Port is offline   Reply With Quote
Old 02-07-2014, 01:36 PM   #5
Join Date: Jan 2014
Location: Central Kentucky
Posts: 1,989
Rewards Points: 3,903

In my personal experience with 1920 and 30s wire it was 14 but it was a little fatter than a modern 14.
Retired drapery and home furnishings installer.
Colbyt is online now   Reply With Quote

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off

Similar Threads
Thread Thread Starter Forum Replies Last Post
knob and tube wiring diybuck Electrical 3 04-22-2011 12:13 AM
A question on how to handle my knob and tube wiring: larrybud Electrical 3 12-10-2010 08:15 PM
Knob and tube wiring PAULYBOY Electrical 1 03-28-2007 06:20 PM
Knob & Tube wiring - How concerned should we be? hotdiggitydog Electrical 6 04-11-2006 07:52 PM
Installing new lighting on knob and tube wiring drichard Electrical 1 03-05-2006 02:55 PM

Top of Page | View New Posts


Search Engine Friendly URLs by vBSEO 3.6.1