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Drake · January 21st, 2014, 16:39

"Duster" is currently Difluoroethane; it use to be Tetrafluoroethane (HFC 134a).

"Blue gas" was bottled HFC-134a with lubricants, similar to "Green Gas" being propane + silicone.

HFC22 (HCFC-22, Chlorodifluoromethane) was "Red Gas" and pre-dates propane and has slightly higher pressure. This hasn't been around for a decade+.

"TOP Gas" is generally associated to Green Gas but it was actually something else with similar pressure/performance ("HFC-122" -- whatever that's supposed to be). And just to add to the confusion, there was (still is?) a company called TOP which sold green gas.

So all in all, you're fine with propane.

January 21st, 2014, 16:39	#11
Drake E-01 Trader rating Join Date: Dec 2001 Location: Montreal, QC	"Duster" is currently Difluoroethane; it use to be Tetrafluoroethane (HFC 134a). "Blue gas" was bottled HFC-134a with lubricants, similar to "Green Gas" being propane + silicone. HFC22 (HCFC-22, Chlorodifluoromethane) was "Red Gas" and pre-dates propane and has slightly higher pressure. This hasn't been around for a decade+. "TOP Gas" is generally associated to Green Gas but it was actually something else with similar pressure/performance ("HFC-122" -- whatever that's supposed to be). And just to add to the confusion, there was (still is?) a company called TOP which sold green gas. So all in all, you're fine with propane. __________________ Last edited by Drake; January 21st, 2014 at 16:41..