I need some guidance installing a 220 outlet in my shop. My main panel is in the garage and I would like to put a 220 plug in the attached shop so I can run an air compressor or welder. What is the simplest way to go about this project? I need to visit the hardware store, but it seems some wire can be run without conduit? Also, I was under the impression that breakers start at the top of the box and work their way down, mine seems to be opposite with a 100 amp breaker in the bottom right feeding the house panel inside. Is order irrelevant when it comes to the box?