Originally Posted by CaptainChunk
The room will be painted very dark. No light from the stairwell. The room should be 100% dark.
Fireplace will be on sometimes. The wife likes to be warm.
Budget is TBD
. I should probably talk to my wife about that. She is completely onboard with this project.
Screen size is up to personal preference, the projector should be used on the wall for a few weeks to determine what looks best.
A very general ratio is 10-12" for every foot in distance.
The ambient light from the fireplace will have a negative effect on contrast and especially black level.
While this example is with reflections from white walls, the effect is similar:
The first type of setup is worse because the light from the fireplace hits the screen directly.
ALR screen can help with ambient light, but only the bright parts of the image. The dark parts/shadows means the projector is not sending light, so ambient light wins on the screen.
Angular ALR's for regular throw projectors must not have any light coming from the same direction as the projector.
UST ALR's (lenticular) are best for rejecting light from above less from other directions.
If the second scenario is used, the seating distance is around 8'? If the fireplace is going to be used a lot then a TV might be a better solution here.