I,m not an electrician just an maintance guy building a house. Trying to figure my circuits. On a 15 amp circuit roughly 1440 watt max. On a 20 amp 1920 watts max. keep light and plug seperate due to if one blows not left in dark. How many watts is a ceiling fan, refrigerator, dishwasher. Can I run the whole house as a 20 amp 12 ga wire. Why must I used 14 ga 15 amp. Does GFI need own circuit or can I branch.. I got a friend that works for the power company that will do the job, I.m just trying to understand some of it.
