Ok campers...I have recently become the owner of a new Brinkman vertical smoker: I have already gone about drilling some 3/8" holes all over the bottom and side of the charcoal pan, making it look like a colander. I've lined the bottom with foil to catch ashes for easy removal. I am also heading to the Home Despot to pick up some lump charcoal. My first few attempts yielded low temperatures. I first tried using charwood. That was utterly useless as the heat never registered on the therm and It was consumed mostly in the chimney starter. Next I used ol' Kingsford briq's. Hotter, but I was only able to get slightly over 200, but I could only maintain about 150-175. Ive heard lump will get me hotter, any other suggestions? I suppose it doesn't help that it is February in NE, but I'm a year round griller anyway.