I read the same thing. Some thought that introducing air above the fire helps to burn off unburned wood gasses that contribute to dirty smoke. I did this on my first build:hogaboomer wrote: ↑July 9th, 2021, 10:10 amI was looking on another pit builder site and they say an upper and lower air intake on the firebox helps control the temps better. He says the lower intake controls the heat of the fire, and the upper is for airflow into the CC. Any of you guys ever heard this?
https://www.smokingmeatforums.com/threa ... et.301360/
I rebuilt the front door w thicker steel as this one warped a bit and eliminated the top vents and saw no difference. Hard to say one way or the other.