- Joined Jul 18, 2016
They may be air adjuster screws..... They adjust to trim the flame from yellow to a clean blue flame... Blue is what you want.... The adjusters are usually used at the setting you will use most because they don't deliver a linear adjustment over the full range of the burner...
I purchased the Heavy Duty burner from Northern Tool for my homemade propane smoker. How do I adjust the three screws on the bottom of the burner to get a better flame? Any suggestions on the adjustments?
Any advice or practical experience is appreciated.
Lower Limit of Flammability
Upper Limit of Flammability
Ignition Temperature in Air
Maximum Flame Temperature
[h3]Propane Combustion Characteristics[/h3]
Looking at the burner location and inlet sizes..... I'm gonna guess..... The incoming air is mixing with air that has already been burned and also mixing with wood burned air.... both are low in oxygen.... reducing the possibility of complete combustion of the propane gas...
I think the burner area needs to be isolated from all those combusted gasses for it to burn properly... That can be done 2 ways... cut a hole in the floor and lower the burner assembly until the burner ring is flush with the floor so it gets all fresh air from below.... or box in the burner assembly from the burner ring and expose the lower portion to outside air.... I do think the inlet air should be increased also...
Whenever the possibility of already burned air can recirculate, it will screw up the possibility of a clean burn and possibly extinguish a flame or burning wood chips etc....