Epson EpiqVision Ultra LS800 4000-Lumen Pixel-Shift 4K UHD Ultra-Short Throw Laser 3LCD Smart Home Theater Projector (Black) - Manual (Page 27)

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When installing multiple projectors side-by-side
Without partition
If you are installing multiple projectors next to each other, make sure hot air from the exhaust vent does
not go into the air intake vent of the other projector.
1 43.3 inches (110 cm)
With partition
If you use a partition, you can narrow the space between the projectors.
1 Partition
2 7.9 inches (20 cm)
Parent topic: Projector Placement
Projection Distance
The distance at which you place the projector from the screen determines the approximate size of the
image. The image size increases the farther the projector is from the screen, but can vary depending on
the zoom factor, aspect ratio, and other settings.
Use the tables here to determine approximately how far to place the projector from the screen based on
the size of the projected image. (Conversion figures may have been rounded up or down.)