InnoFlue® 
Flex
Material & Construction
InnoFlue® Flex uses industry leading, flame retardant polypropylene technology to construct single wall, gasketed, flexible vent pipes and accessories. InnoFlue® Flex’s dynamic product line provides superior corrosion protection throughout. Lightweight polypropylene eliminates installation fatigue associated with most common venting materials, making it easy. The flexible properties of the Vent Length allow for the rapid lining of chimneys with offsets up to 45°. InnoFlue® is ULC-S636 listed at zero clearance to combustibles, making it approved for use in Canada.
Flexible Vent Lengths and fittings are joined using high performance EPDM H1 gaskets which are suitable for service pressures up to 20 inches of water column (5000Pa) and are resistant to corrosive condensate. 3" and 4" diameter Flex Vent Lengths have rigid sections every 2 feet. These rigid male sections can be inserted into any InnoFlue® Single Wall socket and allow for the easy transition between Single Wall and Flex. Once Centrocerin (installation lubricant) has dried the gaskets provide firm junctions between components.
InnoFlue® Flex is used to vent individual appliances. InnoFlue® Flex is commonly combined with InnoFlue® Single Wall but can also be combined with InnoFlue® Concentric. For more information on system configurations, visit the InnoFlue® Flex Solutions page.
Dimensions
Diameters: 2" (60mm), 3" (80mm), 4" (110mm)
Available Lengths:
•2" Diameter
150' Continuous Length
25' Kit
35' Kit
Custom Cut to Order
•3" Diameter
150' Continuous Length
25' Kit
35' Kit
Custom Cut to Order
•4" Diameter
80' Continuous Length
25' Kit
35' Kit
Custom Cut to Order
Applications
Suitable for U.S. Category II and IV or Canadian Type Gas Vent BH, Class II heating equipment:
Gas Fired - 230°F (110°C) Max Flue Gas Temp
Appliance Type: Condensing Boilers, Furnaces, Tankless Water Heaters & Tanked Water Heaters
Oil Fired - 248°F (120°C) Max Flue Gas Temp
Appliance Type: Condensing Boilers, Furnaces, Tankless Water Heaters & Tanked Water Heaters
Construction
• 2+mm thick rigid polypropylene
• EPDM Gaskets with an H1 pressure rating (5000Pa).
• PPs gray composition up to 5" (125mm) diameter
• UV-stabilised PPs Black for exterior components
Features & Benefits
Flexible
Benefits:
-
Handles up to 45° degree offsets
-
Multiple flex liners can share a single chase
Continuous Lengths up to 150'
Benefits:
-
Prevents risk of joint failure
-
Eliminates cure time, speeding up installations
Lightweight
Benefits:
-
Product can be hand carried eliminating the need for lifts
Rigid Sections Every 2'
Benefits:
-
Rigid sections incorporated in 3" and 4" diameters allow Flex to fit into any Single Wall Vent Length or fitting.
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Limits waste to a maximum of 2'
Storage
Components should be stored in a clean, dry environment in their original packaging. Non-UV stabilised plastic components must be protected from prolonged exposure to UV light. InnoFlue® Flex should be stored above 32°F (0°C).
Health and Safety
For more information on the health and safety benefits of using InnoFlue®, please view our Health and Safety page. Where installation of a InnoFlue® involves working at a height, a full risk assessment must be conducted and appropriate safety measures put into place.
Workmanship
Installation of InnoFlue® does not require any special tools. Centrotherm reccomends that the material temperature is not less than 32°F (0°C) during installation.
Installation
Pipes are joined by push-fit connections, with EPDM or Viton gaskets located in the sockets. Pipes and components must be installed with their socket ends to the outlet and male ends to the appliance.
Joining
- Lubricate seals and male parts of pipes with CENTROCERIN lubricant or water only.
- Push male end of pipe into opening with light twisting movement.
Cutting
Components should be selected to minimise cutting. Where cutting is necessary, pipe sections can be cut to length at male end (non-socketed end.) Any cuts must be made at right angles to the pipe. Pipe
can be beveled for insertion into the adjoining socket to ease installation. All field cuts must be deburred. Elbows and other fittings must not be cut.
For complete InnoFlue® Installation Instructions visit the Literature Section and download the Installation Manual.
Appliance Start-Up
Once InnoFlue® installation is complete the heating system and flue should be commissioned following the boiler manufacturer’s instructions. There is no cure time or wait time required.