i dont know if this had been discussed....if a room is 15 feet from floor up to the ceiling...what is the ideal height to fix the blower? maybe 8 or 9 feet? anything higher then that will result in the aircond having to work longer to cool the room cos cool air sink while warm retained at the top? If blower is fixed at 9 feet...the aircond will only cool the room up to 9 feet...right? when the sensor at the blower detected that the room is cool enough it will reduce power. anything above the blower of 9 feet will not be as cool as below the 9 feet and after all its not necessary to cool any space above it.