I'm not an electrician, but this video of a 240V outlet install seems to have several code violations: The one that jumps out at me is the fact the he didn't use an outlet box and installed it straight-into the drywall. That can't be legal, can it? I'm going to bet that there are 3 or 4 violations at least. The video doesn't allow comments. Otherwise, I'm sure the viewers would be listing the problems right there. Let's list them here.