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3.7 Vent Termination Framing <br /> IMPORTANT. Vent cap location must be In compliance with NATURAL AND LP GAS RIGID PIPE <br /> Section 6.2 Minimum Termination Clearances on page 21. MINIMUM HORIZONTAL TERMINATION FRAMING <br /> WARNING: DO NOT RECESS THE VENT CAP INTO WALL OR <br /> SIDING. <br /> 3.7.1 Vertical Terminations <br /> CAUTION:Cold air transfer area. The surround fireplace chase <br /> must comply with all clearances as outlined In this manual, —, <br /> and be constructed in compliance with local building codes. i ii a, <br /> Outside walls should be insulated to prevent cold air from L <br /> entering room. .-- —! <br /> • Follow vent pipe manufacturer's installation instructions for <br /> vertical terminations. I <br /> • A minimum of 1 in(25 mm)clearance on all sides of the <br /> vertical vent pipe must be maintained. j 35/4• <br /> (895mm) <br /> • Attic insulation shields may be insulated using unfaced <br /> insulation products listed as non-combustible per ASTM E -. • .r <br /> 136. <br /> 3.7.2 Horizontal Terminations <br /> � I <br /> IMPORTANT: Horizontal vent sections require 1/4 in (6 mm) •, *4). • I.>-< <br /> rise for every 12 in(305 mm)of travel. 14' <br /> NOTE: Elbows listed with approved vent systems for this (356mm) <br /> appliance vary in vertical length. Please consult the vent <br /> manufacturer's instructions to determine the elbow dimension <br /> used for installation. Adjust the wall pass-through rough NATURAL AND LP GAS FLEX PIPE <br /> opening dimensions to maintain clearance requirements. MINIMUM HORIZONTAL TERMINATION FRAMING <br /> 1. Measure from floor level of the fireplace to the center of <br /> where the vent pipe will penetrate the wall. <br /> 2. Cut and frame an opening in the wall to allow the vent system �� ��I <br /> to run level through the wall pass-through.A minimum of 1 H <br /> in(25 mm)clearance on all sides of the horizontal vent pipe I ( I L11 <br /> 10 <br /> at the wall pass-through must be maintained.These thimbles �i ( <br /> may be insulated using any unfaced insulation products listed ' <br /> as non-combustible per ASTM E 136. <br /> 3. Follow the vent pipe manufacturer's installation instructions <br /> for vent installation. <br /> 4P <br /> (1067mm) <br /> • I <br /> 14' <br /> (356mm) <br /> Figure 3.7,Vent Termination Locations <br />