I just moved into a new house and I have that one room that always seems to be hot. It's on the 2nd floor of the house with the attic over it. The other 2 rooms on the 2nd floor are always a nice temperature.
The room is 23x20 with 9ft ceilings. There are 3 windows in the center of the back wall and the supply is centered over those windows.
There is no return at all in this room. I was wondering if I added a return would it help out with the heat. If I'm already adding a return then does it make sense to add another supply and if so where? Would it make sense to add a supply at the front and back of the rooms and the return in the middle (all in the ceiling)?