I've got a Whirlpool over-the-range microwave that is currently venting back into the kitchen. I'd like to poke a hole through the wall and vent it directly outside. I've read the instructions and it seems pretty straight forward.
I don't know much about this, so my question(s) is: am I going to be "locked in" to this microwave? What happens in three years when I want to replace it with another brand? Is it likely that the exhaust duct will still line up? What if I replace it with a hood?