L234-11 Gas Insert | 3VENTINGTHE APPLIANCE MUST NOT BE CONNECTED TO A CHIMNEYFLUE SERVING A SEPARATE SOLID FUEL BURNINGAPPLIANCE.This appliance is designed to be attached to two 3" (76 mm) co-linearaluminium flex running the full length of the chimney. The flue lengthmust be a minimum length of 8' (2.43 m) and a maximum of 35' (10.67m). Periodically check that the vent is unrestricted.Masonry chimneys may take various contours which the flexible linerwill accommodate. However, keep the flexible liner as straight aspossible, avoid unnecessary bending.Alternative Approved Venting Components*46DVA-VC Vertical Termination Cap46DVA-VCH High Wind Cap46DVA-GK 3" (76 mm) Co-linear Adaptor with flashingIn areas of consistently high winds, we recommend using the SimpsonDura-Vent System 46DVA-GK adapter and 46DVA-VCH high-wind cap.The Air Intake pipe must be attached to the inlet air collar of thetermination cap.*NOTE: Simpson Duravent can only be used with 3" (76 mm) liners.INSTALLATION WITH 3" (76 mm) & 3" (76 mm)LINERSPart # Description948-305 3" (76 mm) Flex - 35 ft. (10,67 m) (intake & exhaust)946-529 Regency Co-linear DV Vertical Termination Cap & FlashingThe L234 is also approved for use with a 2" liner for air intake and a3" liner for exhaust. This would be suitable for a Class A wood burningchimney with a minimum 6" round flue.The chimney must be lined with one 2" diameter liner for intake andone 3" diameter liner for exhaust. The minimum vent length is 8' andmaximum is 35'.INSTALLATION WITH 3" & 2" LINERSPart # Description948-305 3" (76 mm) Flex - 35 ft. (10,67 m) (exhaust)948-316 2" (51 mm) Flex - 35 ft. (10,67 m) (intake)946-582 Regency Co-linear DV Vertical Termination Cap,Flashing & 2" (51 mm) CollarVent Run Vent RestrictorPositionBurner AerationSetting8' to 20' 1" (25 mm) 3/16" (5 mm)20' to 35' 3/4" (19 mm) 3/16" (5 mm)NOTE: See instructions in the "Vent Restrictor Position"section on positioning of the vent restrictor.Vent Run Vent RestrictorPositionBurner AerationSetting8' to 20' 1" (25 mm) 3/16" (5 mm)20' to 35' 1" (25 mm) 1/8" (3 mm)NOTE: See instructions in the "Vent Restrictor Position"section on positioning of the vent restrictor.