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| Which is funny btw, as installations can be more energy efficient than portable.
Inverted units for example can beat even the portable sinlge unit that most people use both in energy effeciency and in minimising heat pollution. | |
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It's not so hard to figure out, is it? AC installations are noisy, ugly, and often suck a lot of energy. A country like Switzerland with a relatively cool climate, where the majority of people live in rented apartments, doesn't want or need AC installations. A portable air conditioner that is sued for short periods and keeps the noise in the apartment makes the most sense.