What defines a kitchen vs a kitchenette?

[Ellie Narie]

Let's say you want to rent out a part of your house, say, your basement or attic. But you can't legally put another kitchen there. What's the closest thing you can do to make an "almost kitchen" in your basement? Can you put a half size 120V commercial convection oven in your basement, or would that break some kind of rule? Whay kind of ventillation and fans (hood?) would you need to install to make sure it can get aired out in case something burns?