Well brazing steels is just like soldering.
It really takes very little gas in comparison to gas cutting, or even gas welding.
Keep an eye out for a used portable oxyacetylene set. Great for steel bicycle frame repairing and other lower temperature jointing. Non-ferrous fillers rod too for aluminum and such.
For me the quest was true; no-smoke; no-seen; no-visible-flame; no-complained-about charcoal making. And not burning up, and not oxidize activating my fir woods.
Read the beginning posts here:
I settled onto the James Hookway single barrel system. You can DOW search it up for the latest revised design improvements.
And this should be as fire escape safe as is possible.
It puts the cooking heat in the center of the barrel. With the barrel outer insulated wrapped.
Enough cycles and you’ll burn out the barrel. Why he personally makes his non-welded to exchange out all of the working elements to a new barrel.
Regards
Steve unruh