Can someone help me solve this problem? I have a 55 gallon kettle which takes some firepower to heat. But for some reason I am not getting the right mixture on the flame and it is coating my kettles with soot and carbon. After a 90 minute boil the stuff is literally caked on sometimes a couple inches thick.
On my smaller system I have a way to adjust the amount or air the burner takes in, but the burner I have on the big system does not allow me to do this. I'm going to attach a few pics so you guys can get an idea what I am working with.
Also, I'm pretty sure this burner is for high pressure propane, not LP nat. gas or what not. At least, that's what the company I bought them from said on their website.

