A hand torch can be used as a Bunsen but the Smith is a bit small for that. Have you considered a National 3B?
It gives you several tip choices and you'll likely find one that can give a bushy, annealing flame and can still sharpen down to a point for sealing welds and such. A small change in workflow may be required but many find it worthwhile to use this approach.
Anyway, the Bunsen just needs a gas line (split-off or dedicated) with a valve before the Bunsen to shut off or reduce flow. It has controls at the burner for combustion. Also, a fireproof-sheathed gas line is recommended since it is usually laying across a workbench top where hot glass can land on it.
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Bobcat on 15lpm and Phantom on HVLP
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