>they’re in a window, car, on the ground, etc Car, sure. I live in a city in a country where window or ground units don't exist though. Most apartments are alr

>they’re in a window, car, on the ground, etc Car, sure. I live in a city in a country where window or ground units don't exist though. Most apartments are already way over ground, shops and other services mount the external units on the roofs. This is not an innate property of AC but a method US implements it.