Rewiring A 1948 Bathroom

nixplix

I gutted the bathroom in a New York house built in 1948. The wiring includes cloth sheathed 12/2 in bx without ground. The bathroom electrical was the end-run of a circuit that services a master bedroom as well as a guest bedroom. I want to place the bathroom on it's own circuit. The house is a tiny one family; the bathroom is small. Will one 20amp circuit with 12/2 Romex be sufficient for two GFCI outlets, vanity lights, recessed shower light, and under-tile heating. Am I asking for too much from one circuit ?

rjniles

Sounded good until I got to the under tile heating. I would run that on an individual circuit sized by the requirements on that heater. The other stuff on a 20 amp circuit is fine.

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Location:
Coastal South Carolina

secutanudu

My floor heat for my bathroom will only use 1.5 amp (15 sq feet). I am doing the floor heat on the lighting circuit, and the outlet (i have just one) on its own circuit.

Do you foresee two high-energy devices (hairdryers?) being used at once? If so, may want an extra circuit.

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Andrew

rjniles

I would run the heat on its own circuit just for ease of trouble shooting if the need arises. I would run the circuit to a wall mounted dead-front GFCI and feed the floor heat of the load side. If you decide to put in a receptacle instead of a dead-front it will have to be a 20 amp circuit.

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Location:
Coastal South Carolina

secutanudu

The floor heat (line voltage) thermostat may have built-in GFCI protection. The SunTouch one I got does.

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Andrew