I have the box once used watered the wood chips and of course the box placed directly on the grill above the flame and mesquite wood used. the roast tasted very good and also had the "smoke ring". However, I have the smoke flavor is not perceived particularly intensively. I'm going to the box, since she has at the bottom a corresponding indentation, the next time you put directly on the middle burner of my grills and untwist it. I then put the meat in a frying basket, so that the heat really affects only indirectly. probably the räuchergemschmack then intense!