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Manafacture: Regency File size: 4.88 mb File name: 700037M_F_SDV-ST-PF_II.pdf Language of manual:

Lowest Discharge Opening H* Vertical Wall Vent Termination Storm Collar Concentric Vent Pipe Flashing 1 inch (25.4 mm) Minimum Clearance to Combustibles Termination Heights For Vents Above Flat Or Sloped Roofs Ref. NFPA 54 / ANSI Z223.1 Roof Pitch * Feet * Meters Flat to 6/12 1.0 0.3 6/12 to 7/12 1.25 0.38 7/12 to 8/12 1.5 0.46 8/12 to 9/12 2.0 0.61 9/12 to 10/12 2.5 0.76 10/12 to 11/12 3.25 0.99 11/12 to 12/12 4.0 1.22 12/12 to 14/12 5.0 1.52 14/12 to 16/12 6.0 1.83 16/12 to 18/12 7.0 2.13 18/12 to 20/12 7.5 2.29 20/12 to 21/12 8.0 2.44 Horizontal Vent Termination Clearances The horizontal vent termination must have a minimum of 6" (152 mm) clearance to any overhead combustible projection of 2-1/2" (64 mm) or less (see Figure 4). For projections exceeding 2-1/2" (64 mm), see Figure 4. For additional vent location restrictions refer to Figure 5 on Page 7. Note -See Figure 35 on Page 21 for the exterior wall recess allowances of the square horizontal termination. Figure 4 6" (152 mm)12" (305 mm) Combustible Projection greater Horizontal Vent Termination Clearances Combustible Projection2-1/2 inches or less in length 18" (457 mm) Ventilated Soffit Unventilated Soffit than 2-1/2 inches in length Termination Kit Side Elevation View Termination Kit All horizontal terminations may be located as close as 6” (152mm) to any (non-combustible and combustible) exterior sidewall. This distance may be decreased to 2” (51mm) for non-- combustible exterior sidewalls only, if the SV4.5HT-2 termination is used. NOTE: DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE. VENT TERMINATION CLEARANCES EXTERIOR HORIZONTAL VENT TERMINATION CLEARANCE REQUIREMENTS VVVVVFCFixed Closed Window OperableWindow B B A B H M I = Area where Termination is not Permitted= Air Supply Inlet X = Vent Termination V D V 3 ft. 3 ft. A A A = 9” in U.S. = 12” in Canada VL B J X V A G Inside Corner Detail BC C C *18” Ventilated Soffit Horizontal Termination Detail D Exterior Wall 6” Inside Corner * See Item D in the Text Below. V P V O N N Q NOTE: Local Codes Or Regulations May Require Different Clearances. NOTE: Location Of The Vent Termination Must Not Interfere With Access To The Electrical Service. E K X ...... A = Clearance above grade, veranda, porch, 12 inches (30cm)* 12 inches (30cm)** deck, or balcony. B = Clearance to window or door that may be 6 in (15cm) for appliances 6 in (15cm) for appliances opened. < 10,000 Btuh (3kW), 12 in (30cm) < 10,000 Btuh (3kW), 9 in (23cm) for appliances > 10,000 Btuh (3kW) and for appliances > 10,000 Btuh (3kW) and < 100,000 Btuh (30kW), 36 inches (91cm) < 50,000 Btuh (15kW), 12 inches (30cm) for appliances > 100,000 Btuh (30kW)* for appliances > 50,000 Btuh (15kW)** C = Clearance to permanently closed window D = Vertical clearance to ventilated soffit located above the terminal within a horizontal distance of 18 inches (458mm) from the center line of the terminal E = Clearance to unventilated soffit F = Clearance to outside corner G = Clearance to inside corner H = Clearance to each inside of center line extended above meter/regulator assembly I = Clearance to service regulator vent outlet J = Clearance to nonmechanical air supply inlet to building or the combustion air inlet to any other appliance K = Clearance to a mechanical air supply inlet L = Clearance above paved sidewalk or paved diveway located on public property M = Clearance under veranda, porch, deck or balcony Canadian Installation* 12" (305mm) recommended to prevent window condensation 18" (458mm) 12" (305mm) 5" (12.7cm) minimum 2" (5.08cm) minimum - SV4.5HT-2 • 6" (15.2cm) minimum - SV4.5HTSS 3 feet (91cm) within a height of 15 feet above the meter/regulator assembly* 3 feet (91cm)* 6 in (15cm) for appliances < 10,000 Btuh (3kW), 12 in (30cm) for appliances > 10,000 Btuh (3kW) and < 100,000 Btuh (30kW), 36 inches (91cm) for appliances > 100,000 Btuh (30kW)* 6 feet (1.83m)* 7 feet (2.13m)‡ 12 inches (30cm)*‡ US Installation** 9" (229mm) recommended to prevent window condensation 18" (458mm) 12" (305mm) 5" (12.7cm) minimum 2" (5.08cm) minimum - SV4.5HT-2 • 6" (15.2cm) minimum - SV4.5HTSS 3 feet (91cm) within a height of 15 feet above the meter/regulator assembly** 3 feet (91cm)** 6 in (15cm) for appliances < 10,000 Btuh (3kW), 9 in (23cm) for appliances > 10,000 Btuh (3kW) and < 50,000 Btuh (15kW), 12 inches (30cm) for appliances > 50,000 Btuh (15kW)** 3 feet (91cm) above if within 10 feet (3m) horizontally** 7 feet (2.13m)‡ 12 inches (30cm)‡ * In accordance with the current CSA-B149.1 National Gas And Propane Installation Code. ** In accordance with the curent ANSI SZ223.1/NFPA 54 National Fuel Gas Codes. ‡ A vent shall not terminate directly above a sidewalk or paved driveway which is located between two single family dwellings and serves both dwellings. *‡ Only permitted if veranda, porch, deck or balcony is fully open on a minimum 2 sides beneath the floor: • 2" Clearance to Non-Combustibles for SV4.5HT-2 Only. Figure 5 NOTE: DIAGRAMS & ILLUSTRATIONS NO...

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