My furnace's branch is as follows, 14/2 NMB to an emergency switch upstairs, switched on the red wire of a 14/3, and always hot on the black wire, white passes through. The 14/3 runs back downstairs to a metal (not very deep) surface mount box. One half of the box is a "singl-plex", other half is another emergency switch (both single poles). The black (14/3s always hot) goes to the outlet which feeds the condensation pump only, the switched (14/3 red) goes to the furnace feed. My question is could I run 12/2 to my furnace area overhead, use a large ceiling octagon box over head, splice off one 12/2 run down to my outlet (always hot), run one single 12/2 up to my emergency switch upstairs, using the black as supply and white with black tape as the return to the junction box, then run a 12/2 off of the switch output return and spliced in white down to my furnace box. I'll buy a big octagon so I won't fill violate. And I'll look into the metal surface mount on the furnace, b/c there is a lot in there (14/2 and two 12/2 s). Any better ways of doing this, I don't want to buy 12/3 just for the switch return, and would rather use 12/2 if I could (BTW no pilot lite on the emergency switch, so I don't need a neutral in the switch box?). Once again, thank you very much (in advance), Beeek

Hello All, Here is my problem: next to being new at electrical work and wiring, I’ve been having some trouble with adding an additional outlet. I’m wiring in an old house, and a duplex outlet sits on one side of a bedroom. On the other side of the room is an unused crawl space. I wish to add an additional outlet, (single or duplex) on the crawl space wall, next to the backside of the bedroom outlet. The bedroom outlet is incased in a metal box. I’m wondering how the wiring to the new additional outlet will work. Sincerely, Charles Spring