AFCIs have proven so effective at preventing electrical fires that the National Electrical Code (NEC) requires AFCIs to be installed in almost every room in newly built houses. Bathrooms, garages, and unfinished basements—areas defined as non-living spaces—are among the few exceptions.

Are AFCI breakers reliable?

AFCI circuit breakers are specialty safety devices that have been around for well over a decade, and their job is to prevent fires. They get better and better as time goes on, but they're still not a perfect product. The main problem that homeowners experience with AFCI circuit breakers is nuisance tripping.

When should you not use AFCI?

AFCI protection is not required for outlets located outside or in garages or bathroom areas. (B) All 15A or 20A, 120V branch circuits supplying outlets in dormitory unit bedrooms, living rooms, hallways, closets, bathrooms, or similar areas.