Re: 12 wire V. 14 wire for circuits
It won't limit the current going through the filament, unless there is noticeable voltage drop in comparison to using 12 gauge wire. The voltage drop would happen because of excessive distance (in which case you would be required to upsize the wire anyway) or continually running the circuit near capacity.
The "Senior Member" designation under my name doesn't mean I know a lot, it just means I talk a lot.I've been a DIYer since I was 12 (thanks, Dad!). I have read several books on various home improvement topics. I do not have any current code books I can refer to. I was an apprentice plumber for two years.