16 7022-514C July 7, 2015CASTILE INSERTH. Pellet Venting ChartsThe maximum horizontal venting allowed with no vertical vent-ing attached is 48 inches (1219mm) including one 90° elbowor two 45° elbows. This is our recommended horizontal vent-ing installation. Addition of any horizontal venting beyond 48inches (1219mm) Hearth & Home Technologies strongly rec-ommends a minimum of 60 inches (1524mm) of additional verti-cal vent. Horizontal sections of vent pipe should have a 1/4 inch(6.35mm) rise per foot.Hearth & Home Technologies recommends any installationrequiring more than two 90° elbows, or more than 15 feet (4.5m)of venting to use 4 inch (102mm) vent.Figure 16.1Fire Risk.• Only LISTED venting components may be used.• NO OTHER vent components may be used.Substitute or damaged vent components may impairsafe operation.WARNINGNOTICE: These are guidelines for successful venting of your pellet appliance. The more vertical rise you can obtain inyour system, the better it will perform. Horizontal vent runs can accumulate ash and will need to be cleaned more often.Try to keep them as short as possible.ONE 90º ELBOWTotal MinimumVerticalVentDiameter4 0 35 5 36 6 37 7 38 8 49 9 410 10 411 11 4TWO 90º ELBOWSTotal MinimumVerticalVentDiameter2 5 33 6 34 7 35 8 36 9 3THREE 90º ELBOWSTotal MinimumVerticalVentDiameter2 11 43 12 445° elbow is equivalent to 1 foot of straight pipe90° elbow is equivalent to 3 feet of straight pipeMinimum Vertical Vent for One Elbow051015200 5 10 15 20Horizontal Run, (ft)Minimum Vertical Rise(ft)Minimum Vertical Vent for One ElbowFigure 16.3Minimum Vertical Vent for Three Elbows05101520250 2 4 6 8 10 12Length of Horizontal Sections (ft)Minimum Vertical Rise(ft)Minimum Vertical Vent for Three ElbowsFigure 16.2Minimum Vertical Vent for Two Elbows051015200 5 10 15Length of Horizontal Sections, (ft)Minimum VerticalRise, (ft)Minimum Vertical Vent for Two Elbows