Fellas, I cleaned out the grill and firebox when I got home to find something interesting.
The first picture is the hole in the firebox. The heat then goes into like a long heat duct (second picture) across the length of the chamber and arrives at the third stack which controls the heat.
So no smoke actually gets to the chamber from the firebox but it heats the chamber.
Unless I get this modified, I really have no choice but to smoke from the chamber which I really don't have a problem with.