I use the same Presto lite acetylene torch I learned on. I have investigated using other set ups and tried a few but I stick with the prestolite torch because I know it and it works. I have an O2 concentrator which I will add to my system when I build the new shop. And I admit to a fascination with NG.
I am, otherwise, a bug about fire safety. The shop will have a layer of cement board sandwiched by 5/8" fire rated drywall on the interior walls and ceiling. I am looking into a sprinkler possibility as well.
Regards shop safety I have a greater fear of high speed machines wrapping up my fingers. I have had worse burns from hot polish than I ever had from a torch.
I also am concerned about some of the jewelry I see out and about. Some of it is plain dangerous to wear. And I have to believe it is then dangerous to make as well.
Cathy use your common sense about your shop. Ventilate it well. Illuminate it well. Be aware of fire safety, have several correctly rated fire extinguishers. Have an easy way to exit. Have a first aid kit with in reach. Know your chemicals and what neutralizes them.
All of this is no doubt stuff you already know. But sooner or later someone will read what Rob and Ted and the others have to say and an injury will be avoided.
Have fun, make jewelry and post pictures.
Sent from my Verizon 4G LTE Droid