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TYPICAL VENT INSTALLATIONS
FIGURE3a
When venting, the horizontal run must be kept to a mini- |
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mum of 10 inches or a maximum of 20 feet. If a 20 foot |
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horizontal run is required, the fireplace must have a mini- |
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mum vertical rise immediately off the fireplace of 57 inches. | FIGURE3b | |
FIGURE 3a. | ||
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When terminating vertically, the vertical rise is a minimum 34 inches and a maxi- mum 40 feet above the fireplace. FIGURE 3b.
SPECIAL VENT INSTALLATIONS
PERISCOPE TERMINATION
Use the GD401 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 model of fireplace, as illustrated.
