Abstract: A burner includes an inlet coupling, a plurality of nipples, and jets. The plurality of nipples are fluidly connected to the inlet coupling. The jets are supported by and protrude upwardly from the nipples. At least one of the jets including an oxygen hole. The inlet coupling includes an inlet hole, an outlet hole, and a passageway extending from the inlet hole to the outlet hole. The passageway of the inlet coupling includes a crest between the inlet hole and the outlet hole. The passageway extends upwardly from the inlet hole to the crest and the passageway extends downwardly from the crest to the outlet hole. The crest being above at least one oxygen hole of the jets.

Abstract: A burner includes a plurality of end nipples and at least one jet supported by and protruding outwardly from each end nipple. The end nipples and the jets are brass. Each end nipple includes a first end that is threaded and a second end that is closed. Each end nipple includes a wall extending from the first end to the second end and including a bore extending through the first end to the second end. Each end nipple includes a threaded hole extending through the wall to the bore. The first end of the end nipple, the second end of the end nipple, and the wall of the end nipple are unitary. Each jet includes a threaded portion threadedly engaged with the threaded hole and a fuel combustion outlet spaced from the threaded portion. Each jet includes a barrel extending from the fuel combustion outlet toward the threaded portion. The barrel has a larger outer diameter than the threaded portion.