[hypoxia]

I have a different take on replacing R22 units with R410 units, I assume yours are currently R22?  My stick home has 30 year old R22 units which I will keep until a major failure.  I can do that since it only runs when I am there and I repair it myself.  Other properties have slowly been switched to R410 units since the techs always condemn them when I am travelling leaving me no recourse.  What a maintenance PIA the R410 units have been, mostly coil failures starting at the 3-5 year point.  The coils are aluminum and R410 pressures are so high on a hot day the coils develop leaks.  Coils and heat pumps have been impossible to get during the hot season which requires me to stock spare brand new heat pumps while 5 year old units that have leaking coils sit for a year waiting for parts.

The Green New Deal is driving the cost of refrigerants up, 30# of R410 is $400 now and will probably be $800 or more next year.  R134 is doing the same.
https://www.foxnews.com/opinion/bidens-c...-piling-up