Portable U-shaped air conditioning unit - GIF

Portable U-shaped air conditioning unit.

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Previously:

Building air conditioning array - GIF
Car air conditioning compressor - GIF
Helicopter crashes while lifting air conditioning unit - GIF

I've seen them for sale at my local Costco, not conceptually different from a split AC system. It puts the noisy compressor part outside the house, doesn't take up the whole window, and is MUCH harder to drop it five stories to the street below when installing it :-) . Just have to have windows without a sill.