Externally, the jollity of aged men has much in common with the mirth of children; the intellect, any more than a deep sense of humour, has little to do with the matter; it is, with both, a gleam that plays upon the surface, and imparts a sunny and cheery aspect alike to the green branch and grey, mouldering trunk.
1) Knob and tube wiring is two-stranded â with a hot wire and a neutral wire only â it uses no ground wire. There is absolutely no protection whatsoever when a fault occurs.
Is your home equipped with obsolete knob and tube wiring? Uh-oh. You'd better plan on getting it replaced with a safer, more modern electrical system. The cost to replace knob and tube wiring is typically somewhere between $5,000 and $9,000+ for a 2-story home, and will increase about $2,000 for each additional story.