Compressor difference between different efficiency window A/Cs?
When comparing a 9.7 EER window A/C to a 10.7 EER window A/C of the same age and BTU rating, how much difference (if any) is there between the compressors? Do older window A/Cs have much less efficient compressors?
I'm starting to pick out a window A/C or dehumidifier for my heat pump water heater project. Since I'm going to use ES22a (mostly R290), how will the efficiency change if I started with a R410a unit? (I know that the effective capacity would be reduced and the expansion valve would have to be replaced. Also, if I started with a R410a unit, I would reuse the R410a to make a freeze drying machine.)
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To my surprise, shortly after Naomi Wu gave me a bit of fame for making good use of solar power, Allie Moore got really jealous of her...
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