I bought a charcoal smoker from Home Depot yesterday in hopes of making tender, delicious brisket. I am using a combination of hickory wood chunks (soaked in water) and Kingsford charcoal. I put in the first batch of charcoal in and got the smoker to around 200 Deg F. The charcoal lasted maybe an hour so I had to add more, but now that I've been adding more wood and charcoal, the temp doesn't get passed like 115 Deg (according the the door temp gauge). I don't know what the air vents should be at to increase temperature. Anyways, how do I make the smoker hotter? I have a 6.5LB beef brisket smoking right now and the internal temp of that is only at 108 degrees. Also, any tips for smoking would help, I'm a beginner. Thanks.