Myths and facts about knob and tube wiring

Myth: Knob and tube wiring is unsafe.

Fact: Knob and tube wiring is safe, if properly maintained by a Licensed Electrical Contractor.

Myth: The Ontario Electrical Safety Code no longer recognizes knob and tube wiring as an acceptable wiring method, so you must replace it.

Fact: ESA and the Ontario Electrical Safety Code recognize knob and tube wiring methods. However, you must follow the Ontario Electrical Safety Code to ensure electrical safety. Rules 12-200 to 12-224 set out the safety standards for installing this type of wiring. See more details of safe and unsafe practices related to knob and tube wiring.

Flash: Knob and tube wiring in residential installations