I have cleaned everything on the exhaust path. There is no holes on the pot floor/trap door. there is only 4 small holes on the bottom of the pot its self and those are clean. The control box is clear. And the control is set on 4.
I have the feed rate all the way down and on high the flame is at least 6" above the top of the fire pot. The flue is 4" stainless steel liner. the chimney is about 15' and does not have an outside air kit. I also have a CB 1200 insert in the basement that is running great.
There are EIGHT small holes in the bottom of the firepot, not four. Four are at the base of the sloped bottom and four more in the front of the pot just above the swinging dump valve.