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pipe burner build instructions

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  • This has been a helpful post. But, I have a question. I have built a pipe burner for my BBQ/smoker, it has about 24” of flame length. I have a regulator from an older gas grill, (propane), I built a 2”-1” venturi from a bell reducer. My pipe is Ø1” black pipe. I drilled holes slightly larger than 1/16, as I was breaking too many, and switched to a different style of bit. The holes are 3/8” to ½” apart, 2 rows.
    My question has to do with the length of the flames. I have nice blue flames, but they are only about 1” long. Is my orifice to small, or to large? It is drilled at a #54 (.055”). Do I need to make it bigger or smaller so I can get a longer flame?
    Thanks for any input/help on this.