I have my oxycon set just under 4.5 and the regulator for my propane is about 6, then I adjust my flame at the torch. I have heard about people saying the propane should be less than the oxy, but that makes no sense to me since I keep it dialed down at the torch to where it needs to be, and when I tried it at 3-4 I didn't get a stable flame.
I called Nortel to ask about having problems with the flame, keeping it lit & burning stably, and he told me to turn it up at the regulator.
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