Sean Kenney is a master electrician based in Amesbury, Mass.
Q: We know that compact fluorescents deliver energy savings, but how about dimmer switches? The assumption is that homeowners will use them to turn down lights to save money — but do they actually save energy?
A master electrician explains how to snake wires in an old house without damaging the plaster walls.
Q: In a bathroom remodel, we plan to install a light fixture in a shower stall, with a switch near the shower door. Do the fixture and switch need to be GFCI-protected?
Q: Here in New England, we usually attach 1x3 strapping to the ceiling joists before installing drywall. At most jobs, I see the electricians stapling the Romex cable to the bottom of the joists, parallel to the 1x3 strapping, so the wiring is about 1/2 i
Q: I am planning to install new lighting in a warehouse. Are there any advantages, either in installation costs or in operating costs, to installing 240-volt lighting fixtures instead of 120-volt?