No preference anyway. Just thought above the door would look neater. What your take?
Hi,
Above the door in my opinion may not be an ideal place for the following reasons:
1. The door is normally offset from the centre of the room. As such, the FCU is not able to suck in warm air equally from all corners of the room. This create some hot spots.
2. Having the FCU on one corner of the room, will limit effectiveness of cooling the bed which is where people spend most of the time in the bedroom.
3. Door normally open and close. When door open, warm air, including humid air enters the room. When humid air is in contact with the cold surface of the FCU, water condensation may happen.
4. When the door below the FCU is opened, the FCU fan will suck in the warm air from outside towards the place where it is intended to cool.
5. With the FCU above the door, the drain pipe would need to run horizontally from the FCU to clear the door width before it can run straight down. This allows the accumulation of scum in the slow flowing horizontal pipe. It is good practice to run drain pipe vertically down from the FCU before it is slanted horizontally. This allowed the flow to increase as it drop vertically from the FCU.
6. With the wider 5 ticks FCU, you may have problem centralizing it to the door.
7. Never place a FCU above a toilet door or against a hot wall.
I feel that it is good to place the FCU in such position that it is blowing along the length of the room, able to blow towards the bed, at the centre of the shorter wall, away from the door.
However, there are conflicting understanding if you refer to the geomancy of FCU placement.
The above are my opinion and hope that they are helpful.