In 2009, the EPA banned manufacturers from shipping new A/C units with R-22, an ozone-depleting refrigerant that was intended to be temporary replacement of the old refrigerants until a new type could be developed.
However, the ban included a loophole, and over the past few years, A/C units with R-22 have still been installed. That loophole may finally be closing, however, as the price to fill those cheap A/C units with R-22 proves to be substantially greater than more environmentally friendly chemicals.
Think costs are high? Just wait two years when the price is expected to drop over 90%.
Read The Full Story Here: http://www.energyvanguard.com/blog-building-science-HERS-BPI/bid/60083/The-High-Price-of-R-22-for-Air-Conditioners-May-Close-the-Loophole
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