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Old 12-04-2014, 08:32 PM
David Hopman David Hopman is offline
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Join Date: Mar 2009
Location: Sutter Creek, CA
Posts: 442
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Look on Craigslist for oxygen concentrators- I've bought 6 for between $100-$200 each. One 5 liter unit will run a Minor torch adequately, 2 will run it well.

Arrow Springs also sells torches and has a decent help page on torch selection:
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