[Efi69Cam]

Originally Posted by Evergreen6

When 1234yf is released into the environment, it takes a couple of weeks to break down versus more than a decade for R134a. That's a big plus. A lot of refrigerant gets released into the atmosphere.

R12 is extremely toxic to humans (including being carcinogenic) and its really bad for the environment (including getting into groundwater and forming smog).

R134a is kind of a middle ground, not as toxic, but still pretty bad for the environment.

1234yf has a few advantages. Cooling systems can be smaller and still achieve the same output, and it requires less energy to produce cooling. That's important for electric heat pumps, which are common in EV's, but may see their way into ICV's too--because they work really, really well. Belt-driven AC compressors rob horsepower, they're heavy, and take up space under the hood, and they have to spin whether they're being used or not.

Cost? 3 8oz cans go for about $100 and most vehicle take 1-1.5 lbs. 1lb = 16oz.

It's finding shops that have all the newer equipment and techs trained on the refrigerant if you want someone else to do the work, and that does cost money.

Heat pump, Wtf do you think an ac is?

https://www.carrier.com/residential/...-does-it-work/