the burner is used in my smoker, grill size 282" square inches.
This is the biggest size that I can send via China Post Group to American and Australia.For Canada and UK the maximum size is 450" square inches
Pit temperature swing is + - 1 F. say total 2 F.
There is NO flue on the smoker. Smoke and hot Air are forced to circulated inside the smoker and escape from gaps of cover
When fan runs fast, you will not see flame, nor smoke, and temperature.
When fan runs very slow, you will see big smoke
When fan runs at half power, you will see flame