No I have one of the Brinkman Smoke'N Pit cookers. It has the offset firebox to the left. I do tend to put sand in the bottom of the box to keep it from rusting out. But there is plenty of airflow. The main cooking chamber gets warm and fills up with smoke and all but I just cannot get the whole are to heat up. Of course it gets warm to the touch (with my hand) but not warm enough to cook.
Great Outdoors Smoker Model 3600
Brinkman Smoke N Pit