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These instructions apply to the Simpson Dura-Vent Direct Vent System, Model
DV-GS. This venting system, in combination with the gas appliance, has been tested
and listed as a decorative gas appliance system, or as a direct vent heater system
by a major testing agency such as UL, AGA, CGA, Omni or Warnock Hersey.
Check the manufacturer's rating plate and instruction manual to confirm that the
Simpson Dura-Vent direct vent system is approved for use on the brand name
appliance you have selected.
Read all instructions carefully before starting the installation. Failure to follow these
instructions may create a fire or other safety hazard, and will void the warranty. Be
sure to check the appliance manufacturer's installation instructions for specific
venting and clearance to combustible requirements, which may vary from one
appliance to another. Do not extend the venting system vertically or
horizontally in excess of the distance prescribed in the appliance
manufacturer's installation instructions.
The Simpson Dura-Vent Direct Vent System is an engineered product that has been
designed and tested for use with an approved list of direct vent fireplaces. The
Simpson Dura-Vent warranty will be voided, and serious fire, health, or other safety
hazards may result from any of the following actions:
• Installation of any damaged Direct Vent component.
• Unauthorized modification of the Direct Vent System
• Installation of any component part not manufactured or approved by
Simpson Dura-Vent.
• Installation other than as instructed by Simpson Dura-Vent and the
appliance manufacturer.
VENTING INSTRUCTIONS
FOR DIRECT VENT
FIREPLACES
APPLICATION
IMPORTANT
INSTALLATION PRECAUTIONS
1
1
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Summary of Contents for Simpson DV-GS
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Page 1: Installation Precautions
APPLICATION These instructions apply to the Simpson Dura-Vent Direct Vent System, Model DV-GS. This venting system, in combination with the gas appliance, has been tested and listed as a decorative gas appliance system, or as a direct vent heater system by a major testing agency such as UL, AGA, CGA, Omni or Warnock Hersey. -
Page 2: Safety Precautions For The Installer
• Be aware of electrical wiring locations in walls and ceilings. PARTS LIST The Simpson Dura-Vent Direct Vent System offers a complete line of component parts for installation of both horizontal and vertical installations. The galvanized pipe and fittings are used for concealed locations such as attics, or spaces where corrosion is a factor, such as above the roofline. - Page 3 PARTS LIST Number Description 7" x 4" 8" x 5" 11008 1208 6" Pipe Length 11007 1207 9" Pipe Length 11006 1206 12" Pipe Length 11004 1204 24" Pipe Length 11003 1203 36" Pipe Length 11002 1202 48" Pipe Length 11017 1217 17"...
- Page 4 SQUARE HORIZONTAL TERMINATION WALL FIRESTOP ROUND HORIZONTAL PIPE SECTION TERMINATION 45° ELBOW WALL FIRESTOPS FIGURE 1 SQUARE HORIZONTAL TERMINATION ROUND WALL HORIZONTAL FIRESTOP TERMINATION VERTICAL TERMINA- WALL TION FIRESTOPS PIPE STORM SECTION COLLAR 90° ELBOW FLASHING PIPE SECTION CEILING FIRESTOP 45°...
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Page 5: Planning Your Installation
To connect the venting system to the appliance flue outlet, a twist-lock appliance adaptor is required. With some brands of appliances, the Simpson Dura- Vent adaptor will be built into the appliance at the factory. With other brands, it will be supplied by the appliance manufacturer, for installation in the field. - Page 6 USE EITHER SQUARE HORIZONTAL OR ROUND HORIZONTAL TERMINATION CAPS Fig 4 twist-locked and rotated to face the wall termination, with final positioning of the vent pipe assembly determined by the mounting orientation of the appliance adaptor onto the fireplace. Figure 4 shows some of the possible vent pathway options. Consult the appliance manufacturer for any restrictions.
- Page 7 available for this purpose. CENTER (3) Sealant is optional, unless OF HOLE specified appliance manufacturer. Should you elect to use sealant, it is only necessary on the outer tube of the GS Pipe. Run a 1/8-inch wide bead of sealant around the male end of the outer sleeve, as shown in Figure 5, and twist-lock the pipes or...
- Page 8 (e) Clearance to an outside corner -as tested. SNORKLE (f) Clearance to an inside corner -as tested. (g) Not to be installed above a meter/regulator assembly within 3 feet 12 INCHES horizontally from the MINIMUM centerline of the regulator. (h) Clearance to a service regulator vent outlet -6 feet minimum.
- Page 9 Step 4. For a Square Horizontal Vent Termination, place the vent cap in the center of WOOD the square hole and attach to the exterior wall SCREWS with the four wood screws provided. Before attaching the Vent Termination to the exterior wall, run a bead of non-hardening sealant around it's outside edges, so as to make a seal between it and the wall.
- Page 10 Fig 11 1-1/4 " FOLD SHEET STRAP METAL HERE WALL SCREW FIRESTOP SHEET METAL SCREW WALL FIRESTOP WALL FIRESTOP STRAP ROUND TERMINATION SQUARE TERMINATION (shaded area shown in Figure 10), so that an WOOD SCREWS air space will exist between the wall and the Vent Termination.
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Page 11: Vertical Termination
VERTICAL TERMINATION OPTIONAL HIGH-WIND TERMINATION Step 1. Check the appliance manufacturers's installation instruc- tions for required clearances (air CLEARANCES spaces) to combustibles when AS DEFINED BY APPLIANCE passing through ceilings, walls, roofs, enclosures, attic rafters, or other nearby combustible surfaces. Do not pack air spaces with insu- CLEARANCES AS DEFINED... - Page 12 cut a square hole in the ceiling, (10"x10" square for 7" x 4" pipe, 11"x11" square for 8" x 5" pipe) OPTIONAL centered on the hole drilled in Step 2. HIGH-WIND TERMINATION Frame the hole as shown in Step 4. If the Twist-lock adaptor has not been installed on the fireplace by the manufacturer, install it now in accordance with the fireplace...
- Page 13 Notes: (1) If an offset is necessary in the attic to avoid obstructions, it is important to support the vent pipe every 3 feet, to avoid excessive stress on the Elbows, and possible separation. Wall Straps are available for this purpose. (Fig (2) Whenever possible, use 45°...
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Page 14: General Maintenance
solve this problem. Step 9. Slip the Storm Collar over the Pipe, and push it down to the top of the Flashing, as shown in CLEARANCES Use the non-hardening sealant AS DEFINED BY APPLIANCE above and below the joint between the Storm Collar and CLEARANCES the Pipe. - Page 15 1. Check areas of the Venting System which are exposed to the elements for corrosion. These will appear as rust spots or streaks, and in extreme cases, holes. These components should immediately be replaced. 2. Remove the Cap, and shine a flashlight down the vent. Remove any bird nests, or other foreign material.
- Page 16 Other products made by Simpson Dura-Vent: Dura/Plus Chimney Dura-Vent Gas Vent (B-Vent) Dura-Black Single Wall Stovepipe Dura/Liner Masonry Reliner DVL Close Clearance Connector Pipe Dura/Connect Single-Wall Connector for B-Vent DuraFlex Masonry Reliner for Gas Appliances Designer Series Accessories SIMPSON (800)-835-4429...
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