I have calculated the distances and the top of the image can be at about 2.05m (6'9'').
If the bottom is at 0.7m (2'4''), the image hight can be up to 1.4m (2.1m from the floor), preferably 1.3 and less.
The ceiling fan is hanging at about 2.2m (7'3'') and for throw distance of about 3.7m the offset of the W1070 and the HD26 is about 0.2m. (0.1m from the projector to the fan, and 0.1 from the fan to the screen)
(The measurements are from my memory, I'm not at home right now, but as you can see I checked the offset, the throw distance and the measurements of the room)
The wall arm is interesting. I'll look into that.
I will consider hanging curtains, but I can't hang them all over the room (it's a bedroom, not a tomb
). Maybe foldable curtains.
Is there some kind of filter that I can put on the lens to dim it a bit? maybe to change the light bulb?
Got home now- the hight of the fan is about 2.15m. the hight of the window is 2.35m.
the min. screen hight is 0.8m from the floor.
The cheapest 55'' TV cost about 1160$.