No, because when extended, you lose the cooling effect and the machine can shut down.
Yes, an internal tank that can be emptied via the drain plug. (The internal tank cannot be removed.)
Simply unscrew the plug at the bottom. Feel free to tilt the machine slightly over a floor drain.
By starting the machine in the morning when it is the coolest in the room, as well as pulling down blinds and keeping doors closed to the desired space that needs to be cooled.
Yes, it works well if the hose is enough.