FPI P36-4 Zero Clearance Direct Vent Gas Fireplace 19INSTALLATIONVENTINGDIRECT VENT SYSTEM (FLEX)HORIZONTAL TERMINATIONS ONLYThese venting systems, in combination with the P36 Direct Vent Gas Fireplace, have been tested and listed as a direct vent heater system byWarnock Hersey. The location of the termination cap must conform to the requirements in the Vent Terminal Locations diagram in the "Exterior VentTermination Locations" section.FPI Direct Vent (Flex) System Termination Kit (Part # 946-515) includes all the parts needed to install the P36 with a maximum run of 4 feet.1) 6-7/8" dia. flexible liner (4 ft. length)2) 4" dia. flexible liner (4 ft. length)3) spring spacers (4)4) thimble (2)5) AstroCap termination cap (1)6) screws (12)7) tube of Mill Pac (1)8) plated screws (8)9) screws #8 x 1-1/2" Drill Point, StainlessSteel (4)1) 6-7/8" dia. flexible liner (10 ft. length)2) 4" dia. flexible liner (10 ft. length)3) spring spacers (7)4) thimble (2)5) AstroCap termination cap (1)6) screws (12)7) tube of Mill Pac (1)8) plated screws (8)9) screws #8 x 1-1/2" Drill Point, StainlessSteel (4)If longer runs are needed, the FPI DirectVent system (Flex) # 946-516 includes allthe parts needed to install the P36 with amaximum 10' run.Notes:1) Liner sections should be continuous without any joints or seams.2) Only Flex pipe purchased from FPI may be used for Flex installations.3) If you are installing the P36 into a FPI Cabinet Mantel Kit, use the minimum horizontal vent height (centre-line of 40-1/2"). Rememberto include the mantel base (3" in height) in your calculations and to maintain the 2" clearance to the underside of the mantel top.