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Northline Express DuraFlex SS Installation Instructions Manual

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FOR USE WITH GAS, OIL, PELLET, OR
Stainless steel DuraFlex SS Chimney Relining System is an OMNI-Test Laboratories
listed for relining masonry chimneys which are intended to be used for venting oil,
pellet, or solid-fuel burning appliances, as well as gas appliances (category I only).
These instructions cover installation from the appliance vent connector through the
wall of the masonry chimney, or through the damper, up to the termination cap.
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. It
is important to follow the appliance manufacturer's installation instructions and to
check the label on the appliance to confirm the appliance category and any restrictions
or limitations.
If DuraFlex SS is used for gas appliances, then the DuraFlex AL Cap Assembly,
DuraCap, or High-Wind Cap must be used for proper listing of the vent.
The Simpson Dura-Vent DuraFlex SS is an engineered product that has been
designed and tested for use as specified above. 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 component.
• Unauthorized modification of any Dura-Vent product.
• 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.
Consult your local building codes before beginning the installation. Contact local
Building or Fire officials about restrictions and installation inspection in your area.
NorthlineExpress.com
DuraFlex SS
INSTALLATION INSTRUCTIONS FOR
RELINING MASONRY CHIMNEYS
SOLID FUEL APPLIANCES
APPLICATION
IMPORTANT
INSTALLATION PRECAUTIONS
http://www.northlineexpress.com
1.
143-P-02-2
Toll-Free 1-866-667-8454

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Summary of Contents for Northline Express DuraFlex SS

  • Page 1 If DuraFlex SS is used for gas appliances, then the DuraFlex AL Cap Assembly, DuraCap, or High-Wind Cap must be used for proper listing of the vent.

  • Page 2: Sizing Requirements

    CAUTION: Make sure you have the proper equipment for the job, including adequate safety protection for working at elevated heights. Always wear gloves and safety glasses when handling sheet metal parts. SIZING REQUIREMENTS Proper sizing of the relining system to the appliance is very important. For gas appliances, refer to the National Fuel Gas Code or the Simpson Dura-Vent Sizing Handbook for complete sizing instructions (these tables are not intended for Category II, III or IV appliances or Oil burning appliances).
  • Page 3 (Figure 1). CHIMNEY LINER SELECTION The DuraFlex SS Chimney Liner System consists of a continuous Flexible Liner from the top of the chimney to the appliance connection. (Figure 2) This system is relatively easy to install, even in masonry chimneys that are constructed with an offset.
  • Page 4 5). Place Spacers every 5 feet on the Liner. Step 4. Secure a rope to the Flex Puller and attach the Flex to DuraFlex SS Liner as shown in Figure 4. One person should feed the liner through the chimney, and...
  • Page 5 Flex Liner as shown in Figure 8, and tighten the fast connect band. Attach a rope securely to the body of the Tee (wrapping rope tightly above branch area or around indented section of tee) and proceed as described in Step 4 of the Basic DuraFlex SS Liner Installation section. BODY Step 2.
  • Page 6 FLEX LINER FLEX LINER Fig 10 Fig 9 TEE BODY STRAP BRANCH ROTATE TEE BODY TO LINE UP WITH OPENING IN MASONRY 4 (Basic section) to it's proper location, even with the opening in the chimney wall. Disconnect the rope (Figure 9). It may be necessary to rotate the Flex Liner and Tee to get the opening for the branch in the proper location.
  • Page 7 COMBUSTIBLE COMBUSTIBLE WALL MORTAR SLEEVE INSULATED FLEX LINER WALL FRONT HALF OF WALL PASS WALL THIMBLE THRU RIGID FLEX VENT PIPE FLEX CONNECTOR CONNECTOR Fig 11 Fig 12 masonry (Figure 11) Step 2. If you have a solid-fuel burning appliance, you will need to use a Wall Pass Thru to penetrate through the combustible wall safely and connect to the DuraFlex SS liner inside the masonry (Figure 12).
  • Page 8 Refer to the Insulation Sleeve Instruction section. STAINLESS STEEL FLEX Step 2. Measure and record the dimensions to LINER determine total Flex Liner requirements. Step 3. Unpack and unroll the Flex Liner. Attach FLEX Spacers to the Flex Liner to insure the liner maintains CONNECTOR the 1"...
  • Page 9 Step 3. After sealing the Top Plate to PLATE APPLIANCES the masonry chimney, attach the DuraFlex SS Cap Assembly (or DuraFlex AL Cap Assembly if used on a gas appliance) to the Flex Liner and tighten the fast connect band, as shown in Figure 16.
  • Page 10 PELLET VENT CAP (FOR OIL AND PELLET VENT) OPTIONAL HIGH WIND GAS VENT OR CAP FOR GAS PELLET VENT PELLET VENT ONLY PIPE (DEPEND- VENT CAP OPTIONAL ING ON (FOR OIL HIGH WIND APPLIANCE) CAP FOR GAS STORM COLLAR ROOF PELLET VENT ONLY SUPPORT...
  • Page 11 Flex Connector be installed INSULATION SLEEVES WRAPPED in the proper direction with the Flow arrow pointing AROUND THE FLEX LINER. USE INSULATION CLAMPS WHERE SLEEVES OVERLAP DURAFLEX SS LINER FLEX COUPLING (MAKE SURE FLOW ARROW IS IN PROPER DIRECTION) DIRECTION OF EXHAUST...

  • Page 12: Warranty

    WARRANTY Simpson Dura-Vent warrants DuraFlex SS for a period of 10 years from date of installation. The warranty includes all components and fittings except caps. Caps carry a five-year warranty. All warranties, whether expressed or implied, shall be...