I tried searching for threads and came up with nothing so I'm trying here. I have to dismantle a air handler this week and generally stick to commercial carpentry but I'll have to use a torch to cut it up. I have used torches before but have never had to set the regulators. I have read all over different numbers and my buddy told me 7 for acetylene and 11 for oxygen. Then I read almost 40 for oxygen and ten for acetylene. Anyone have some advice for what you have your regulators set at. And any tips would be much appreciated.