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HORIZONTAL VENT FIGURES/TABLES Note: SV4.5VF (Secure Vent), SF4.5VF (Secure Flex) firestop/spacer must be used anytime vent pipe passes through a combustible floor or ceiling. SV4.5HF (Secure Vent), SF4.5HF (Secure Flex) firestop/spacer must be used anytime vent pipe passes through a combustible wall. Note: Two 45 degree elbows may be used in place of one 90 degree elbow. The same rise to run ratios, as shown in the venting figures for 90 elbows, must be followed if 45 degree elbows are used. Square termination (SV4.5HT) shown. Square termination (SV4.5HT) shown. Note: It is very important that the horizontal/inclined run be maintained in a straight (no dips) and recommended to be in a slightly elevated plane, in a direction away from the fireplace of ..." rise per foot (20 mm per meter) which is ideal, though rise per foot run ratios that are smaller are acceptable all the way down to at or near level. *Note: See Figure 39 for wall thickness range reductions when using SV4.5HT termination. Note: Secure Vent components (rigid vent pipe and terminal) are shown in the figures; Secure Flex components (flexible vent pipe and terminal) may also be used. See Table 3 as an aid in venting component selection for a particular range of exterior wall thicknesses. WARNING: UNDER NO CIRCUMSTANCES MAY SEPARATE SECTIONS OF CONCENTRIC FLEXIBLE VENT PIPE BE JOINED TOGETHER. TABLE 3 - Venting Components Required for Various Exterior Wall Thicknesses, When Using The Square Termination (SV4.5HT) Venting Components Required Exterior Wall Thicknesses inches (mm) Termination Kit Only 7 1/2 to 11 3/4 (191 to 298) Termination Kit and 6 in. vent section (SV4.5L6) 11 3/4 to 16 1/2 (298 to 419) Termination Kit and12 in. vent section (SV4.5L12) 18 1/4 to *22 1/4 (464 to *565) Termination Kit and Telescopic section (SV4.5LA) and 6 in. vent section (SV4.5L6) 13 to *23 1/4 (330 to *591) NOTE: DIAGRAMS & ILLUSTRATIONS NOT TO SCALE. 19 H1 V H **Wall Firestop/Spacer (SV4.5HF) *Ceiling Firestop/Spacer (SV4.5VF) *When using Secure Flex, use Firestop/Spacer SF4.5VF **When using Secure Flex, use Firestop/Spacer SF4.5HF **Wall Firestop/Spacer (SV4.5HF) TABLE G V Minimum H Maximum H+H1 Maximum feet (m) feet (m) feet (m) 1 (0.305) 2 (0.610) 5 (1.52) 2 (0.610) 4 (1.22) 10 (3.1) 3 (0.914) 6 (1.86) 15 (4.65) 4 (1.22) 8 (2.48) 20 (6.2) V+H+H1 = 40 feet (12.4 m) Max. H = 8 feet (2.48 m) Max. H + H1 = 20 feet (6.2 m) Max. TABLE H VMINIMUM H + H1 Maximum feet (m) feet (m) 1 (0.305) 5 (1.52) 2 (0.610) 10 (3.1) 3 (0.914) 15 (4.65) 4 (1.22) 20 (6.2) V + H+ H1 = 40 feet (12.4 m) Max. H + H1 = 20 feet (6.2 m) Max. V H H1 **Wall Firestop/Spacer (SV4.5HF) **Wall Firestop/Spacer (SV4.5HF) *Ceiling Firestop/Spacer (SV4.5VF) *When using Secure Flex, use Firestop/Spacer SF4.5VF **When using Secure Flex, use Firestop/Spacer SF4.5HF Figure 43 - Rear Vent - TWO 90 DEGREE ELBOWS Figure 44 - Top Vent - TWO 90 DEGREE ELBOWS HORIZONTAL VENT FIGURES/TABLES (continued) Square termination (SV4.5HT) shown. See Table 3 as an aid in venting component selection for a particular range of exterior wall thicknesses. See Table 3 as an aid in venting component selection for a particular range of exterior wall thicknesses. Square termination (SV4.5HT) shown. 20 NOTE: DIAGRAMS & ILLUSTRATIONS NOT TO SCALE. HORIZONTAL VENT FIGURES/TABLES (continued) V H2 H1 H *Ceiling Firestop/Spacer (SV4.5VF) **Wall Firestop/Spacer (SV4.5HF) *When using Secure Flex, use Firestop/Spacer SF4.5VF **When using Secure Flex, use Firestop/Spacer SF4.5HF **Wall Firestop/Spacer (SV4.5HF) TABLE J V Minimum H Maximum H+H1 +H2m Maximu feet (m) feet (m) feet (m) 1 (0.305) 2 (0.610) 5 (1.52) 2 (0.610) 4 (1.22) 10 (3.1) 3 (0.914) 6 (1.86) 15 (4.65) 4 (1.22) 8 (2.48) 20 (6.2) V+H+H1 +H2 = 40 feet (12.4 m) Max. H = 8 feet (2.48 m) Max. H+H1 +H2 = 20 feet (6.2 m) Max. TABLE K VMINIMUM HMaximum feet (m) feet (m) 1 (0.305) 5 (1.52) 2 (0.610) 10 (3.1) 3 (0.914) 15 (4.65) 4 (1.22) 20 (6.2) H +H1 = 20 feet (6.2 m) Max. V+V1 +H+H1 = 40 feet (12.4 m) Max. V H H1 **Wall V1 Firestop/spacer (SV4.5HF) *Ceiling Firestop/spacer (SV4.5VF) **Wall Firestop/spacer (SV4.5HF) *When using Secure Flex, use Firestop/Spacer SF4.5VF **When using Secure Flex, use Firestop/Spacer SF4.5HF *Ceiling Firestop/spacer (SV4.5VF) Figure 46 - Top Vent - THREE 90 DEGREE ELBOWS Figure 45 - Rear Vent - THREE 90 DEGREE ELBOWS Square termination (SV4.5HT) shown. Square termination (SV4.5HT) shown. See Table 3 as an aid in venting component selection for a particular range of exterior wall thicknesses. See Table 3 as an aid in venting component selection for a particular range of exterior wall thicknesses. VERTICAL OR HORIZONTAL VENTING USING SECURE FLEX KITS AND COMPONENTS VERTICAL OR HORIZONTAL VENTING USING SECURE FLEXKITS AND COMPONENTS Secure Flex kits may not be modified; also, under no circumstances may separate sections of flex pipe be joined together. Using adapter (SV4.5RF), Secure Flex kits may be added to the end of a vent run made up of rigid Secur...

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