I had a charbroil h2o smoker given to me and I've read all the ECB mod write ups out there. I have the legs mounted on the outside, a grate in the bottom of the pan, and I'm workings on some legs for the pan. My question is, do I need to seal up the area between the body and the charcoal pan? Mine has a significant gap between the two. I haven't seen it mentioned anywhere. On the writeups so I thought I would ask. I fabricating a dampener for the bottom of the fire pan, and thought all that air around between the pan and the body would render it useless.