The Kettleman is different than the Weber - it has open vents all around the lower part and a BIG adjustable vent on top. Seems to be a different way to control temps. I am sure with some experimentation and discussion, I could figure out how to do low and slow on this cooker... But, honestly, with the CB smoker, Weber Performer, and CB 500X, I don't need this to be a smoker - it IS a kick butt grill and works well at that - so, I am happy.