The Bayou Classic high pressure cast iron fry burner is considered a high pressure burner but in Cajun terms is low pressure. This cast iron fry burner performs well when used with 10 PSI regulators. If you put a higher BTU, the flame is less controllable. You will also have an issue with the burner receiving too much propane, which will result in your flame blowing itself out. We do use this burner in the SQ14 gas outdoor cookers and 1114 stainless steel gas outdoor cookers. The Bayou Classic high pressure cast iron fry burner includes the air shutter. Orifices are available for purchase separately. The face of this cast iron burner measures 5 1/2 inches in diameter.