hcfcs have an odp rating of 0?
HFC's have a 0 Ozone Depletion (ODP) and a small Global Warming Potential. HFC's are said to be the long-term replacement for CFC's and HCFC's. HC's are the fourth group of refrigerants that are not commonly used because they are flammable. They are made up of Hydrogen and Carbon atoms and the have a 0 ODP.