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Old 03-13-13, 11:27 PM   #3
Vapor Compression Goon
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Great information! That's just what I was looking for. I know I read somewhere that BBQ grade stuff was at least 90% propane with varying amounts of other flammables mostly, and the stink oil of course. What little I've worked with it, I charge from the small Coleman bottles and then refill them from a 20 lb. tank. I didn't know some people are playing with propylene too. For the cost of it, I'll stick to the cheap propane stuff and focus on filtering it well.
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