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These instructions apply to the Simpson Dura-Vent 5"x 8" Direct Vent System. 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 gas appliances. 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.
5"x 8" DIRECT VENT
INSTALLATION INSTRUCTIONS FOR
DECORATIVE GAS APPLIANCES
AND DIRECT VENT HEATERS
APPLICATION
INSTALLATION PRECAUTIONS
IMPORTANT
1
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Summary of Contents for Simpson Dura-Vent 5"x 8" Direct Vent System
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Page 1: Installation Precautions
AND DIRECT VENT HEATERS APPLICATION These instructions apply to the Simpson Dura-Vent 5"x 8" Direct Vent System. 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 both horizontal and vertical installations. Decorative brass or chrome trim kits are available for both wall thimble covers and ceiling support boxes. Snorkel terminations are available for applications which may require vertical rise on the building exterior. - Page 3 PARTS LIST Number Description 1208B 6" Pipe Length, Black Finish 1207B 9" Pipe Length, Black Finish 1206B 12" Pipe Length, Black Finish 1204B 24" Pipe Length, Black Finish 1203B 36" Pipe Length, Black Finish 1202B 48" Pipe Length, Black Finish 1211B 11"...
- Page 4 HORIZONTAL TERMINATION ROUND CEILING SUPPORT / WALL THIMBLE COVER APPLIANCE ADAPTOR PIPE LENGTH VERTICAL TERMINATION STORM Fig 1 COLLAR FLASHING CEILIING FIRESTOP ROUND CEILING SUPPORT/WALL ROUND CEILING THIMBLE COVER SUPPORT/WALL THIMBLE COVER CATHEDRAL CEILING HORIZONTAL TERMINATION SUPPORT BOX 90° ELBOW PIPE PIPE LENGTH...
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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 of the vent pipe assembly determined by the mounting orientation of the appliance adaptor onto the stove. (Fig 4) Notes: (1) Twist-lock procedure: Four indentations, located on the female ends of pipes and fittings, are designed to slide straight onto the male ends of adjacent pipes and fittings, by orienting the four pipe indentations so they match and slide into the four entry slots on the male ends.
- Page 7 noncombustible material only, i.e. masonry block or concrete only, a hole with zero clearance is CENTER acceptable. OF HOLE Notes: (1) The horizontal run of vent must be level, or have a 1/4" rise for every 1 foot of run towards the termination.
- Page 8 (l) Clearance under a SNORKEL veranda, porch, deck or balcony: 12 inches minimum. For installations requiring a vertical rise on the exterior 12 INCHES MINIMUM of the building, 14-inch and 36-inch tall Snorkel Terminations, as shown in Figure 7 are available. Follow the same installation Fig 7 procedures as used for...
- Page 9 (2) For buildings with vinyl sid- ings, a Vinyl Siding Standoff, should be installed between the vent cap and the exterior wall. (Figure 10). Attach WOOD SCREWS the Vinyl Siding Standoff to the Hori- zontal Vent Termination. The Vinyl Siding Standoff prevents excessive heat from possibly melting the vinyl siding material.
- Page 10 maining portion of the sheet metal strip back towards the vent cap, so it will be con- 1-1/4 " cealed by the Decorative Wall FOLD Thimble Cover. (Fig 11) STRAP HERE Step 7. Slide the Deco- rative Wall Thimble Cover up to the wall surface and attach to the wall with screws pro- SHEET...
- Page 11 ceiling, cut an 11"x 11" square hole in the ceiling, centered on the hole drilled in Step 2 (unless otherwise specified by the appliance manufacturer). Frame the hole as shown in Fig 14. Step 4. If the Twist-lock Appliance Adaptor has not been installed on the appliance by the manufacturer, MARK install it now in accordance with the appliance instruction...
- Page 12 Secure the base of the Flashing to the roof with roofing nails. Use a non- hardening sealant between the uphill edge of the flashing and the roof. Insure the roofing material overlaps PLUMBER'S TAPE CONNECTED TO the top edge of the Flashing as shown WALL STRAP in Fig 17.
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Page 13: Cathedral Ceiling Installation
Notes: (1) For multi-story vertical installations, a Ceiling Firestop is required at the second floor, and any subsequent floors. (Fig 18). The opening should be 10.5" x 10.5" and framed similar to the opening in Step 3. (2) If Vent passes through any occupied areas above the first floor, including closets and storage spaces, it must be enclosed. - Page 14 tack the Support Box in place through NAILS the inside walls and into the roof CEILING FIRETOP sheathing. Step 5. Using tin snips, cut the Support Box from the top corners down to the roofline, and fold the resulting CLEARANCES flaps over the roof sheathing.
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Page 15: General Maintenance
GENERAL MAINTENANCE Conduct an inspection of the venting system semi-annually. Recommended areas to inspect are as follows: 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 Fig 20 cases, holes. - 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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