My window a/c unit from 1990 uses both of those ideas, outside is light colored sheet metal and the water that collects us then boiled off on the outside coils.
What I have noticed tho is that A/C is better at drying the air then anything else and that dry air feels cool so why cool the air if you don't have to? in other words why are we putting a thermostat on A/C, why not a humidistat?
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