r22 and r421a refrigerant: Should you stay with R22 or its replacement refrigerant R-421A?
- 09/03/17 02:59 PM
Should you stay with R22 or its replacement refrigerant R-421A? Wenatchee Home Inspections HVAC systems are not cheap and making a decision to repair an older system versus replacement has many varying factors. A little background R-22 ( Freon) was the popular refrigerant up to around 2010. Pre-2010 you will find R22 on some systems but many were starting to move over to the replacement refrigerant R-410A. In 1987 there was an agreement called the Montreal Protocol. This agreement established requirements that started the worldwide phase-out
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