I have been reading reviews and reports on the mes-40 and I'm about to make the leap. Also looking at the a-maz-n smoker. Questions: #1) Can I set a pan of water, for humidity, on, or a little above the element in the mes???? Are you able to keep that glass door clean and interior visable from smoke to smoke???? #2) Can I use saw dust from a table saw or a little courser chips from a thickness planner with the a-maz-n??? Or does a person have to purchase a special grind of wood chips/dust???