I just bought a charcoal smoker and it has the normal pan in the bottom for the coals and the water pan up above. In betwwen that is a small cast iron smoker box I'm guessing is for the smoked wook chips. There was no booklet or nothing with it since I got the floor model so I'm lookin for some help please. Been grillin for years but the smoker is new to me. I think the wet wood chips go in the cast iron container but so many sites say to put them on the coals if someone could help me out?