An acetylene/air torch gives off a lot of carbon “soot”. Many people
on this list will poo-poo using such a torch as too dirty for thier
usage. However, it fills a nich for an effective, simple, easy to
set up torch that is reasonably available, at least in the US.
I personally didn’t think it was all that bad until a certain event
made it obvious that it gives off a lot of carbon, even when burning
properly. I have installed smoke alarms in my studio, complete with
an outside alrarm/strobe made by Federal Signal.
When I am actually using my air/acetylene there is no problem. I
have a vent hood/short length 6" diameter flue that vents directly
outside… That seams to do the trick keeping the soldering
byproducts out. However, i have determined that when i set my lighted
torch in it’s holder for any length of time, say a couple of minutes,
my smoke alarm goes off.
That being said, i still think it’s a really good torch for
beginners to pros who are working on primarily on silver. Gold may be
a different story. For what little bit of gold ido, it’s not a