Quote:
Originally Posted by pete c
The above video talks about using CO2.
How efficent is it?
I suspect not very. Otherwise, everyone would use it.
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CO2 isn't a bad refrigerant gas, but the problem is that it has a whole lot more pressure inside the system. Where a typical auto AC system might reach 300 or so PSI, a carbon dioxide system operates above 1000 psi. It can't be done with an existing system as a retrofit, new components must be installed that can hold up to the very high pressure.