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W415-0496 / B / 08.10.05
Use the GD201 periscope kit to locate the air termination
above grade. The periscope must be installed so that when
final grading is completed, the bottom air slot is located a
minimum of 12 inches above grade. The maximum allow-
able vent length depends on the fireplace, as illustrated.
FIGURES 3 a-c
FIGURE 4
TYPICAL VENT INSTALLATIONS
SPECIAL VENT INSTALLATIONS
NOTE:
When terminating vertically above 15', the
restrictor plate must be in the fully closed
position. Refer to Restricting Vertical Vents.
PERISCOPE TERMINATION