DuraVent BV Installation Instructions Manual
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DuraVent BV Installation Instructions Manual

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Installation Instructions
Round and Oval Type B GasVent
Systems for use with natural gas or
liquid propane category I and draft hood
equipped appliances and appliances
listed to use Type B Gas Vent.
L205 464002189 REV.01 04/2022
MODEL
• Scan Code For French and Spanish Instructions
• Scannez le code pour les instructions en français et espagnol
• Código de escaneo para francés e instrucciones en español
BV

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Summary of Contents for DuraVent BV

  • Page 1 MODEL Installation Instructions Round and Oval Type B GasVent Systems for use with natural gas or liquid propane category I and draft hood equipped appliances and appliances listed to use Type B Gas Vent. • Scan Code For French and Spanish Instructions •...
  • Page 2 Dear Customer, Installer, or End User: IMPORTANT: We welcome any comments regarding Read through all of these instructions matters pertaining to our DuraVent products. before beginning your installation. Failure We welcome any ideas, input or to install this product as described in these complaints and somebody will respond instructions will void the manufacturer’s...

  • Page 3: Table Of Contents

    Certification Labels ..........4 SECTION 1 (Small Diameter Model BV - 3” to 8”) ....5 - 18 Vent Designations/Types of Appliances and Buildings, Joint Method.

  • Page 4: Certification Labels

    CERTIFICATION LABELS NOTE: DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE.

  • Page 5: Section 1 (Small Diameter Model Bv - 3" To 8")

    Deletion or modification of any of the required All sizes of Model BV Type B Gas Vent may parts or materials may seriously impair the be used in single and multistory buildings. All...

  • Page 6: Vent Designations/Types Of Appliances And Buildings, Joint Method. 5 - 6 Air Supply, Vent Clearances, Location And Enclosures

    Large Diameter Model BV Type B Gas Vents for diameters of 10” to 30”. FIG. 2 - Typical Installation of Model BV (3” to 8”) 4. AIR SUPPLY DuraVent Type B Gas Vents are recommended...

  • Page 7: Vent Connector Type And Size

    Adjustable Tee Cap Length Vent 6. VENT CONNECTOR TYPE AND SIZE R12 Min. Model BV Type B Gas Vent meets all building Insulation Firestop codes and safety standards for use as gas Spacer or appliance vent connectors. Correct selec- Wall Thimble 25mm (1”)

  • Page 8: Firestopping, Attic Insulation Shield, Wall Support / Wall Band

    9. WALL SUPPORT/WALL BAND - FIGS 7 & 8 The Wall Support/Band is for use in supporting Firestop 35 ft. of vertical Model BV (3” to 8”) and estab- Spacer/Support lishes the proper 1” clearance to wall to which Plate Firestop placed it is attached, used at maximum 8 ft.

  • Page 9: Gas Vent Fittings, Fixed Wye

    10. USE OF GAS VENT FITTINGS When installed as a Wall Band, slip a vent Do not cut gas vent pipe or fittings. Adjustable section through the band and clamp loosely Lengths are telescoped over fixed lengths, to in place using the bolt and nut provided. Mark accommodate odd distances between vent the locations for the screws which will attach lengths or connectors.

  • Page 10: Male And Female Universal Adapters, Gas Vent Height

    B gas vent section, in order to continue the and sizing guidelines permit a single wall system toward the termination with Model BV connector pipe may be attached to Model BV joint coupling design. Fixed Wye fitting with a Draft Hood Connector...
  • Page 11 (provided). required for proper venting. The top (outlet) end of the system has now been converted to the DuraVent Model BV Special care must be taken with short gas joint coupling design. vents on duct furnaces, unit heaters, and furnaces in attics to enssure they have sufficient vent height.

  • Page 12: Supports - Primary, Offset, Quick Grip

    12. SUPPORT - PRIMARY AND OFFSETS QUICK GRIP - FIRESTOP/SUPPORT - 3” TO 8” 1. At the desired location, cut a square Gas vent piping must be securely supported. or circular hole in the floor at a minimum Lateral runs are to be supported at least every of 2-1/2 inches larger than the nominal ie 5 feet.

  • Page 13: Flashings, Vent Terminations

    Flashing Flashing over under Roofing Roofing Maintain minimum FIG. 16A - Roof Pitch 7/12 or Less 25mm (1”) clearance to combustible and BV Type B Gas Vent FIG. 15 - Flashing Installation NOTE: DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE.

  • Page 14: Duracap Installation, Vent Operation, Painting

    See Table 1 and Fig. 16B 15. MODEL BV DURACAP INSTALLATION Model BV Type B Gas Vent DuraCap and Highwind Cap must be secured using the “DuraLock” feature. To use the DuraLock feature, orient sections as shown in Fig.1 and force the DuraCap to the upper end of the pipe until joint is fully/properly engaged.

  • Page 15: Duraconnect Ii

    Model BV Type B Gas Vent, permitting simple attachment. Adaptation to other Type B Gas NOTE: IN CANADA, ANY PIPE ABOVE THE ROOF Vent may be accomplished by utilizing either LINE MUST BE OF GALVALUME CONSTRUCTION, Model BV Universal Female B-Vent Adapter.
  • Page 16 B Gas Vent system is not compatible with connector system. the male end of the flexible connector, use a Model BV Universal Female B-Vent Adapter AFTER COMPLETING INSTALLATION or a Universal Female Flexible Connector which are UL Listed and designed to adapt to OF CONNECTOR AND VENT SYSTEM, most manufacturer’s Type B Gas Vent (See...
  • Page 17 Fig. 21 above the Attic Insulation Shield. TO INSTALL: Select the length of Flexible Connector sufficient to extend from Model BV Type B B-Vent Gas Vent to the appliance to be connected. Insert the outlet (male) end into the inlet end of the gas vent until it fully engages.
  • Page 18 Two Metal Brackets Installed Assembly Or Firestop If As Shown. Secure Metal Adequately Supported Brackets To Roof Joist. Below Model BV Type B Gas Vent Fig. 25 One 1/4” Sheet Metal Screw To Attach Each Bracket To B-Vent Sheet Metal Plate Attached To Bottom Side Of Roof Joist.

  • Page 19: Duraconnect I

    Individual lengths are provided with the the desired length is same type of outlet end connector as achieved. DuraVent Model BV Type B Vent, permit- ting simple attachment. The DuraConnect I Single Wall Expandable Flex Connectors are available in 3” and 4” diameters and can extend from 24”...

  • Page 20: Section 2 (Large Diameter Model Bv - 10" To 30")

    Type B Gas Vent (see Figure 28). PIPE SECTION 2 90° ELBOW MODEL BV LARGE DIAMETERS - 10” - 30” NOTE: The following pages are additional information for the installation of the Large LISTED APPLIANCE Diameter Type B Gas Vent Model BV.

  • Page 21: Draft Hood Connectors, Firestop Support Plate, Joint Method

    10” to 30”. The Vent Pipe Hanger (SBA) is Basic Vent Structure designed for use with 10” and 12” diameters Model BV is available in sizes 10” to 30” and only. They are used to provide lateral and has a 1/2” space between pipe walls. When some vertical support for sections of vent, as calculating the assembled length, allow 1”...
  • Page 22 The Adjustable Length 36). Section should be positioned directly under the vent pipe section that is being supported. BV GAS VENT JOINT METHOD - Fig. 35 10” TO 30” TO LOCK JOINT 1. Line up seams of both...

  • Page 23: Adjustable Length, Gas Vent Fittings

    Support Assembly Terminate USE OF GAS VENT FITTINGS Vent Vertical Vent At Least 5 Model BV tees, elbows, increasers, and short Feet Adequate lengths are specially designed to facilitate Draft Hood Above Draft Air Supply Connector interconnections.

  • Page 24: Offset Table, Increasers, Tees, Termination Caps

    Maximum Offset Table in inches With With Two 45° Elbows and: 45° Elbows 12” 18” 24” 36” Only Dia. 5-7/8 5-3/8 7-1/4 19-1/4 23-1/2 Offset 5-3/8 7-1/4 19-1/4 23-1/2 6-5/8 6-1/2 8-1/2 16-1/4 20-1/2 24-3/4 33-1/4 9-1/4 21-1/4 25-1/2 7-9/16 7-1/2 17-3/4 26-1/4...

  • Page 25: Vent Operation, Painting

    For diameters 14” to 30”, the termination must 10’ OR LESS terminate as per Figures 38 and 39. A cap or chimney housing offers resistance 2’ MIN 2’ MIN to the entrance of rain, snow and debris, as 2’ MIN well as birds, and will minimize the effect of wind on the vent.

  • Page 26: Section 3 (Model Bvo Oval - 4", 5", 6")

    SECTION 3 Type B 2 x 4 Gas Vent - 4” or 5” Oval Four- and five-inch Model BVO Oval Gas MODEL BVO - OVAL GAS VENTS - 4” - 5” - 6” Vent may be installed within a standard 2x4 stud wall if all the following conditions Basic Vent Structure are met.

  • Page 27: 4-Inch Oval Installation As B-W Gas Vent

    as shown on Figure 40. 6. After passing through the last Firestop 4. At each floor level above the Tee, install Spacer, the Vent may be finished with either the Firestop Spacer (E) as shown in Figure round or oval fittings, flashings and Cap. (Round pipe, fittings, flashings, and vent caps cost less than corresponding oval parts.) NOTE: Provide at least a 1-inch clearance...

  • Page 28: Attic Shield, Joint Method - Lock And Unlock

    Attic Insulation Shield STEP 4: In some areas, the building code requires the use of an attic insulation shield (AVS) on single-story Type B-W installations. Model BVO Attic Insulation Shield attaches to the top surface of the ceiling plate where oval wall-heater vent enters the attic.
  • Page 29 NOTE: DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE.
  • Page 30 NOTE: DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE.
  • Page 31 NOTE: DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE.

  • Page 32: Warranty

    CSIA Certified Chimney Sweeps, NFI DuraVent products are fully warranted if installed only by a Certified Specialists, or WETT Certified Professionals. professional installer. This Warranty is transferable from the original homeowner to the buyer of the home.

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