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Knob and tube is less of an issue than the capacity of the electrical system. Typically, older homes did not have wiring that would handle the current capacity of modern electrical needs. In fact, many of the older knob and tube homes did not even have 240 V service.

Contact a local electrician to determine the capacity of your home and the electrical needs of the AC system.

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How do you replace knob and tube wiring?

If you are considering changing out the knob and tube wiring in your home, it is going to be a big job. It entails gutting the inside walls to get to the bare wall studs. From that point on it is the same as wiring a new home using all of the proper wire sizing for the appropriate appliances and devices that are to be added for the upgrade.


The most commonly used wiring method is?

The most commonly used wiring method for residential use is called nonmetallic sheathed cable. Other types of wiring methods are knob and tube, as well as service entrance cable.


Can you safely install 3 prong plugs with old knob and tube wiring?

Install an AFCI breaker on the circuit with the outlets you replace and you will be fine.


What does loomex cable mean?

Protecting Knob & Tube wires entering a panel, sleeves called "Loom Duct" were used to protect the conductors and held in place with a "Loom Clip". When Knob and Tube wiring was phased out in the late 30's a multi conductor cable was introduced. This cable had paper around each conductor and then enclosed in Loom duct. This new cable was called "Loomex".


You have 2 lights in 2 different rooms that each work off each wall switch and they are not hooked up as a 3 way switch?

Can anyone tell me why? I rewired the upstairs and I know it is correct. It is an old house that had the knob and tube wiring. Alot of the rooms are on one circuit as I havent had time to split them up. The 2 upstairs bedrooms, 1 downstairs bedroom, Living room, dining room and bathroom (light only) are on the same circuit. However, only the 1 upstairs bedroom and the light in the bathroom are affected. If I turn either of the light switches on, it turns both lights on. If I turn the bathroom light on, the light in the bedroom comes on and does not shut off with the bedroom switch, no matter if the switch is in the on or off position. The same goes for the opposite, cant turn off the bathroom light when the bedroom light switch is on. The bathroom light still has the old knob and tube wiring as I havent gotten that far in the wiring process and so does the downstairs bedroom, however, I cant figure out why the only 2 lights affected are the 1 bedroom upstairs and the bath if all of the other lights act normal. There is only 1 main power feed to all the upstairs Would it be because there is no ground wire on the bathroom light fixture? Its just 12-2 to a junction box and the knob and tube wires are spliced to it in there.

Related Questions

Why will a light not work on knob and tube wiring with 120V of power on meter?

According to www.wilberelectrical.com knob and tube wiring is no longer legal. You will need to replace it. Chances are, as knob and tube wiring is very, very old, something has broken or it has been disconnected as knob and tube is not very safe. I would recomment replacing it with modern wiring devices rather than trying to repair it.


How can I identify old house wiring for safety and maintenance purposes?

To identify old house wiring for safety and maintenance purposes, you can hire a professional electrician to conduct an inspection. They can check for outdated wiring materials, such as knob-and-tube or aluminum wiring, and assess the overall condition of the wiring system. Additionally, look for signs of wear and tear, such as frayed insulation or exposed wires, and consider upgrading to modern wiring standards for improved safety and efficiency.


What are large white buttons fixed to electricity wires in home?

They are insulators which provide support for the wiring. This type of wiring is known as "knob and tubing"


How do you replace knob and tube wiring?

If you are considering changing out the knob and tube wiring in your home, it is going to be a big job. It entails gutting the inside walls to get to the bare wall studs. From that point on it is the same as wiring a new home using all of the proper wire sizing for the appropriate appliances and devices that are to be added for the upgrade.


Is knob and tube wiring dangerous?

Not if it is maintained properly. However, in my opinion, I would rewire any home done in knob and tube with modern methods. As an electrician, exposed conductors in a residential setting just dont jive with me.


What type of wiring is considered as old wiring?

depending on the age of the house, wiring could be several types. Wire known as romex has been used for several years. In very old homes wiring could be two separate wires using glass insulators to separate them.


2001 I have got a problem with the heater door actuator Does anyone have the wiring information for this actuator Controlled from the cental knob on the 3 knob control panel?

Haynes repair manuals typically have wiring diagrams in them. If you plan to work on your S-10 yourself, it's well worth the $20 investment.


The most commonly used wiring method is?

The most commonly used wiring method for residential use is called nonmetallic sheathed cable. Other types of wiring methods are knob and tube, as well as service entrance cable.


When I turn the rear airconditioning unit on in my 2002 gmc envoy air only comes from the feet section and not the top?

There is a knob that turns that from the floor to the vents. It is ran by a small linkage. It could be possible that the linkage has come off or broke.


Where was the first house Abraham Lincoln remembers?

Knob Creek, Kentucky


How does knob and tube wiring work in older homes and what are the potential safety concerns associated with this type of electrical system?

Knob and tube wiring is an older electrical system where wires are run through ceramic tubes and secured with knobs. Electricity flows through the wires to power devices in the home. However, this type of wiring can pose safety risks due to its age, lack of grounding, and insulation deterioration. Potential concerns include fire hazards, electrical shocks, and limitations on modern electrical usage. It is recommended to have a professional electrician assess and potentially upgrade knob and tube wiring for safety reasons.


Can you add outlets to old knob and tube wiring?

Yes, but keep in mind Knob and tube generally switches the neutral wire instead of the "Hot". You can strip back the insulation about an inch and solder your new wire in place. If you've never done it before you might want to consult an Electrician. It can be tricky.