A third concentrator would probably help, but a big problem you will run into is the low pressure that most medical units put out. I haven't tried running my Cheetah on concentrators. I ran my Lynx on a 7 LPM concentrator and it was ok but not great. I really prefer 20 PSI for pressure and most concentrators are only 7-8 PSI. Some can do 10 PSI, but that would be at the low end of what I would want to try working with and I don't hink you could get that high if the concentrators are linked.
As far as tank prices, I found in the Dallas/Ft Worth area tanks run $100 to $250 from the gas companies depending on size. These prices are for 150 to 250 cubic foot tanks. I lease four 300 cf tanks for $40/year each. One of these last me around 30 hours mixed Lynx and Cheetah time. I would not get anything under 100cf for a Cheetah. I believe they use 15 to 20 cf an hour at top end.
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Paul Ewing
Torch Ho... GTT Mirage, Carlisle CC, GTT Cheetahs, GTT Lynxes, and others on tanked O2.
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