I started welding in 1975, Did my share of burning through steel with a cutting torch. Manufactured all sorts of steel, stainless, and aluminum stuff over the years, and started a couple of fires using a torch. I haven't really used one in at least the last twenty years. There is almost always another tool that will get the job done. A Milwaukee Porta-Sand Saw is one tool I highly reccommend. If it's a tight space, a small angle grinder wth a thin cutting disk. And when nothing else can get in there, a Fein tool with a metal blade. Metal chips are so much safer than flying globs of red hot metal.