I've sure got to agree with Glennster. I have used propane/oxygen for 40+ years and have cut a lot of steel. A 20 lb barbeque grill bottle will be adequate for a big size Oxygen bottle (about 4 ft tall). The normal acetylene regulator will fit the LP tank (even the new style valve), no change of hardware necessary. The cutting tip of your torch head needs to be changed to an LP tip (about $15). For truck and heavy farm equipment steel, I set the LP pressure regulator at 8 to 10 psi, and the oxygen regulator to about 25 psi. It takes just a little more time to preheat the start of the cut, but once you begin the cut, it goes just as fast as using acetylene. The LP gas is far cheaper to use, no expensive tank purchase, and easy to find refills at many gas stations or RV places.
When you first light the torch, do not use too much oxygen in the preheat flame. You do not want a roaring sound, but just a bit more O2 than having any yellow color to the flame.
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Today's Featured Article - Listening to Your Tractor - by Curtis Von Fange. Years ago there was a TV show about a talking car. Unless you are from another planet, physically or otherwise, I don’t think our internal combustion buddies will talk and tell us their problems. But, on the other hand, there is a secret language that our mechanical companions readily do speak. It is an interesting form of communication that involves all the senses of the listener. In this series we are going to investigate and learn the basic rudimentary skills of understanding this lingo.
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