I use an oxy-concentrator and BBQ propane. Works really well. 3 frames so far, fillet brazed and lugged, bronze and silver filler.
What's an oxy-concentrator, and where can I get one? Is it similar to a medical oxygen generator?
Edit, just googled it, I now know what it is, where do I get one?
Further edit, how many litres per minute do you use for brazing?