I use a single 9lpm (wish I had 2) for the center fire of my delta, tank for the outer. I can make most anything with the center fire, it just takes a little longer. Tanks for the outer last pretty long even when prepping for a marble show, and I like the extreme heat burst. I have been using this set up for at least ten years now. I had not heard oxygen went up to that price, but I don't think I filled a single tank since my last show in February. I also use a tank one size down from a k tank because I have to move it myself so it costs a little less to fill. I hope that helps a little. Which part of the state are you in?
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Polly
"Confidence, like art, never comes from having all the answers; it comes from being open to all the questions."
-Earl Gray Stevens-
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