Re: 220 Line
As a rule of thumb (and I'm sure there are exceptions), any appliance that is cord-and-plug connected and not permanently attached to the building is considered portable and therefore doesn't need a dedicated circuit; any appliance that is hard-wired requires a dedicated circuit.
One exception that I can think of is hard-wired electric baseboard or wall heaters -- it's fairly common to install multiple units on a single circuit, totaling up to 80% of the ampacity of the circuit.
The "Senior Member" designation under my name doesn't mean I know a lot, it just means I talk a lot.I've been a DIYer since I was 12 (thanks, Dad!). I have read several books on various home improvement topics. I do not have any current code books I can refer to. I was an apprentice plumber for two years.