Many of the homes in Medfield, MA, were built in the 1950s or earlier, and there is a good chance these homes have what is known as knob and tube wiring. An outdated technology, knob and tube wiring sent poorly insulated wires throughout the home wrapped around ceramic knobs, which kept them away from the structural framing.
Knob and tube wiring presents several problems. First, many times the insulation on these wires has disintegrated, leaving bare wires exposed.
Second, these systems were designed to carry much less power, and they can’t keep up with the demands of the modern home. Third, knob and tube systems are difficult to repair. Finally, these systems don’t have a ground wire, making them especially dangerous.
The best solution is to remove the knob and tube wiring and replace it with a modern system. While this project can be extensive, it is much safer, and you’ll experience much better performance from your electrical system.