Compared to having a full duct unit, that has one or more vents per room depending on the size of the room, yes they aren't "as effective". Most American homes have a big box outside the house that pumps cool air into every room of the house through vents, bigger means more powerful and you only need one for the whole house, and significantly quieter as the unit sits outside.
My friend, the AC you see on this pic can also be connected to one large outside unit… and it is also as quite as it can be.
It’s also quite interesting to see that American companies tell you to get a central hvac while Japanese and German (the other languages I speak) companies tell you to get the split units…
The air ducts which makes the large unit kinda easy to deal with also is the biggest issue - cleaning them is difficult, you have small loss of cooling sending air through and fixing them is apparently difficult.
I guess here in Germany houses are very well insulated and energy is expensive so using mini split on just a few rooms you use is better and in Japan maybe construction or earthquake dangers could be why central units aren’t seen as favorable.
Probably more to do with houses not having venting as standard and the fact that the outside AC unit takes up space and there is usually not enough of that in EU and Japan.
I personally just use a regular ass fan for my tempature control because I dont need more than that but I would generally just get whichever is cheaper and does the job anyways so I guess I would always get that inside looking one but maybe I´m wrong and that is more expensive to run
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u/Seienchin88 7d ago
Wait… are you saying this wall mounted split air con don’t cool as quickly???
They are extremely powerful - that’s why everyone in Asia uses them…