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Mike G.
Mike G., Master Electrician
Category: Electrical
Satisfied Customers: 7654
Experience:  Proven Professional 48 years Experience
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Space Heater Wiring GFCI outlet with AFCI breaker 20 AMP

Customer Question

Space Heater Wiring
GFCI outlet with AFCI breaker
20 AMP WITH 14 OR 12 GAUGE WIRE
IS THIS DESIGN SATISFACTORY?
Submitted: 1 year ago.
Category: Electrical
Expert:  Mike G. replied 1 year ago.

Hi, I'm Mike G and I'll be assisting you. Looks fine. The wire size and size of the breaker should be 50% of the load for plugged in appliances on general circuits or 80% of a dedicated circuit and outlet.

Customer: replied 1 year ago.
Can you provide more detail on the 14 ga wire calculation?
Expert:  Mike G. replied 1 year ago.

One more thing. A GFCI is only required in certain areas, exterior, garage, unfinished basements, bathrooms and kitchen counter tops.

14 ga is good for 12A

12 ga is good for 16A