I am a total newbie. I got one of these small torch kits https://www.lowes.com/pd/BernzOmatic-Cutting-Welding-and-Brazing-Torch-Kit/50126405 It is perfect for what I have to do. I cannot afford a $400 Oxy/Ace rig. As you well know, with those little kits, those O2 tanks are empty in less than 10 min...