Bidding Adieu to R-22

In a few months, the last R-22 air conditioner will roll down the assembly line, as the industry completes the Herculean effort to redesign every product, retool every factory, and retrain every technician for the conversion to R-410A. Yet, even now, momentum is building to phase-out R-410A.

Dumping R-410A would be even more ridiculous than phasing out R-22.

R-22 was served a death sentence with the 1987 Montreal Protocol, created in response to reported thinning of t

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