Failed to find check valve now looking for another A. Compressor

[YLee Kioti]

Either is perfectly acceptable. If you don't want to see armored running down your wall, you could also mount a box up above and transition from armored to EMT at that box. If it's a short run of EMT just down the wall, you could even do it without a splice, just strip the armor off the last several feet, and leave a service loop in the box in case you ever want or need to cut and splice later.

I have armored running thru the rafters in my own barn, for most of the lighting, but only ever use EMT when running on the wall in a finished shop space.

Make sure you know which cable clamps to use with armored cable, they're not the same as NM-B (Romex) clamps, and make sure you know how to terminate the sheathing so it won't chafe the wiring. But there's nothing wrong with armor, other than cosmetics.

Got it TY...!

 

[WinterDeere]

Just don’t be Thomas:

 

[YLee Kioti]

lotta truth ...... which is why I got a licensed sparky to run my 50 amp welding circuit.
I've been out of the game for ten plus years.