I'm looking at doing a room by room remodel. I know there would have to be a lot of electrical done which has been the biggest deterrent to date. I'm trying to get a grasp on how much, from what I can figure so far half the house or more would need to be redone. Currently have a 40 slot box with 35 used. Looking to get feed back on my proposed box layout below:
Bed 1 15A (Incl./ Light)
Bed 2 15A (Incl. Light)
Bed 3 15A (Incl. Light)
Living 15A (Incl. Light)
Dining 15A or 20A (Incl. Light)
Bath 1 20A (Lighting Branch?)
Bath 2 20A (Lighting Branch?)
Laundry 20A (Lighting Branch?)
Utility 15A (Incl/ Light)
Dishwasher 15A (3 wire?, shared box)
Garbage disposle 15A (3 wire?, shared box)
Fridge 20A (15A meet code?)
Kitchen 1 20A (split between top and bottom, 3 wire?)
Kitchen 2 20A (split between top and bottom, 3 wire?)
Garage 20A (Outside outlet also)
Lights 15A or 20A (Kitchen, garage, outside, Hall, Bathrooms?, Laundry?)
16 slots 270A – 285A
Bed 1 Heat 20A 1000w
Bed 2 Heat 20A 1000w
Bed 3 Heat 20A 1000w
Living Heat 20A 1200w
Dining Heat 20A 1200w
Kitchen Heat 20A 1200w
Bathroom Heat 20A 450w (switch to 120v or add Hall to branch?)
Hall heat 20A 450w (switch to 120v or add Bathroom to branch?)
A/C, Entry Heat 20A 14000 BTU/7A Heat combo
Dryer 30A HE
Water Heater 30A 4500w
Stove 50A 5000w
24 Slots 290
Total 40 Slots, 580A
Best Answer
There is so much wrong here it's hard to know where to start and I don't have much time tonight. So here are my initial comments:
Separate your lighting circuits from your outlets, you don't want to be in the dark if a breaker trips. On that sized house, with LED lighting you could easily run the lighting for entire house on 2 15 amp circuits (probably one, but I'm being cautious), if not LED lighting...why not? It's a game changer.
Your supply to the base board heaters is way over kill, a 1,000 watt heater at 240 will draw just over 4 amps. A 20 amp 240v circuit can supply 3,840 watts including derating for a continuous load (240 x 20 x .8 = 3,840 watts). Lots of your heaters could be combined into fewer circuits.
In some jurisdictions, depending upon which NEC code. Dining areas (dining room, kitchen nooks, etc.) need to be on a separate circuit from other living areas. I think that's a stupid rule, but it is what it is.
Stay away from MWBCs (what you called 3-wire) for your kitchen and appliances. They are a total PITA when it comes to GFCI/AFCI protection. Given current wire pricing, you don't save anything by going with 12/3 vs 2 x 12/2.
Bathrooms require a dedicated 20 amp circuit, but that doesn't mean EACH bathroom has to have it's own circuit, that circuit can be shared by multiple bathrooms, that's up to you. I do prefer for each bathroom to have it's own circuit, but that's not required by code.
I'll think more about this and probably add to this tomorrow.