N-Vent SYSTEM (concentric) INSTALLATION INSTRUCTION Vertical installation Failure to follow the installation instructions could cause FIRE, CARBON MONOXIDE POISONING, or DEATH, warning +The edges of sheet metal parts may be sharp. Always wear gloves and appropriate eye, foot, and other protections when handling these products. ft is recommended that experienced professionals familiar with the operation and oe maintenance of gas burning appliances and vent/air intake system install this system.
