Q: I have a cheap range hood that is permanently stained and, as a bonus, it stinks. I want to replace it with a microwave oven/range hood combination, but I don’t see any ductwork in the cabinet ...

If your kitchen is starved for space, you might be tempted to place an over-the-range microwave oven above your cooktop. But for effective venting of smoke and fumes, a range hood is a much better ...