Vent Configurations With Horizontal Termination; Restrictor Position - Travis Industries Fireplace Manual 21 DV Fireplace User Manual

14 feet
(max)
10 feet
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NOTE:
If using 6-5/8" diameter vent, a minimum 12" vertical rise is required.
NOTE:
Horizontal sections require a 1/4" rise every 12" of travel.
NOTE:
Restrictor positions are based upon lab tests. The ideal restrictor position
Restrictor
Position # 1
14 feet
(max)
10 feet
5 feet
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