[schleiss]

Yes, I realized that too, therefore I put the machine on the desk to suck in the air of the middle of the room instead of the coldest air on the bottom of the room.

But how come the room doesn't get colder overall? Is it sized too small? My apartment here is about 36m2 with 2.7m tall rooms. The unit has 14000BTU which is one of the largest portable air conditioner that you can get. Even if I were to close the doors to the other rooms, it would only be able to cool the room by 1 degree during the day (8 hour span). In the night it does its job well by lowering the temperature to the outside temperature but it won't go beneath it.