Knob-and-tube wiring can be found in homes from the early 1930's and older. It gets its name from the cloth wrapped hot and neutral wires that travel separately and use white porcelain knobs and tubes ...
SAN FRANCISCO (KGO) -- Few of you have probably heard of knob and tube electrical wiring. But, it turns out you should know more, because insurance companies are now canceling and denying homeowners ...
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