Window-mounted air conditioner: The size of a single-cooling machine below 1P is usually 41cm in width, 35cm in thickness (depth, referring to the front and back length), and 30cm in height; the size of a large 1P single-cooling machine is generally 48cm in width, 51cm in thickness, and 35cm in height; the size of a 1.5P heating and cooling machine is mostly 45cm in width, 54cm in thickness, and 35cm in height.