I have an oxyacetylene torch setup and pretty much I'm just charging the cost of the gas. (Two nearly full tanks of oxygen and acetylene and the cost of the tanks themselves.) The torch is a two into one feed so there's only a single adjustment point for the gas. This makes it easier on beginners and quicker for experienced users. I prefer a dual adjustment setup myself. But I like this little setup. Again as in my post for the welder I'm only selling because I need the money.