Flexible, insulated 4" stainless steel oil vent. Maximum length of 10 ft. Oil vent adaptors are supplied. The insulated oil vent is rated for 1" clearance to combustibles. Wrap the adaptors with 3” of ceramic wool covered with foil tape or sheet metal to maintain 1” clearance. Pipe Option 2 : Standard, 26 gauge galvanized vent pipe. Maximum straight length is 6 ft with up to 2 90º elbows. Maintain 18" clearance to combustibles with galvanized vent pipe. 2 Installation Procedures for Venting System Figure 3
5 Installation Procedures Exhaust Terminations and Exhaust Vent Piping.