Installation Guide
Page 10
..., or floors. ■■ The total length should not exceed 73/4 ft. (2.4 m). Replace plastic or metal foil vents with rigid metal or flexible metal vents. Review Vent System Chart and if necessary, modify existing vent system to avoid crushing and kinking. Flexible metal vent: (Acceptable only if accessible to seal all...
..., or floors. ■■ The total length should not exceed 73/4 ft. (2.4 m). Replace plastic or metal foil vents with rigid metal or flexible metal vents. Review Vent System Chart and if necessary, modify existing vent system to avoid crushing and kinking. Flexible metal vent: (Acceptable only if accessible to seal all...