InnoFlue® Single Wall Commercial

InnoFlue® Single Wall Special Gas Vent Systems use industry leading flame retardant polypropylene technology to construct single wall gasketed rigid vent pipes, fittings and accessories. InnoFlue® SW’s dynamic product line provides superior corrosion protection throughout. Lightweight polypropylene eliminates installation fatigue associated with overhead installations of most common venting materials.  InnoFlue® is tested by InterTek to UL-1738 and ULC-S636. InnoFlue® polypropylene special gas vent systems are zero clearance to combustibles in all applications.
InnoFlue® special gas 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. Once Centrocerin (installation lubricant) has dried the gaskets provide firm junctions between components.
InnoFlue® Single Wall Commercial can be configured to vent individual appliances or cascaded to form a common vent system. For more information on system configurations, visit the InnoFlue® Single Wall Commercial Solutions page.




Diameters 6" 8" 10" 12"
  (160mm) (200mm) (250mm) (315mm)

  • Vent Lengths (Effective Lengths): 12″, 24″, 36″, 72″, 120"*
  • *120" Lengths available in 6" and 8" diameter



  • 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
  • Oil Fired – 248°F (120°C) Max Flue Gas Temp
  • Appliance Type: Condensing Boilers, Furnaces, Tankless Water Heaters & Tanked Water Heaters


  • 3+mm thick rigid polypropylene
  • EPDM Gaskets with an H1 pressure rating  (5000Pa).
  • PPs gray composition up to 12″ (315mm)
  • InnoFlue® SW and Concentric products have passed relevant UV testing for vent systems.

Features & Benefits

Specifically Engineered for Flue Gas Venting

  • Application Specific Marketing and Technical Information
  • Application Specific Custom Parts
  • Centrotherm’s Full Back-up and Industry Support

Europe’s Leading Vent Technology

  • Nearly Two Decades of In Field Service
  • Proven Technology

Polypropylene Construction

  • Superior Corrosion Resistance in Gas and Oil Environments
  • UL-1738 and ULC-S636 Certified for Sustained Flue Gases up to 230°F (110°C) Max.
  • Zero Clearance to Combustibles

Integrated Gasket System

  • No Adhesive Required
  • Allows for Post Installation Adjustments
  • Immediate Use of Appliance Upon Installation
  • Cuts labor costs by up to 75%

Effective Lengths

  • Reduces Number of Joints by 50%
  • Increases Installation Efficiency
  • 10' effective vent lengths available in 6" and 8" diameters


  • Ease to Handle
  • Installs Rapidly

LEED Compliance

  • No Solvent Based PVC or CPVC Adhesives Per IEQ Credit 4.1
  • 100% Recyclable


  • Components should be stored in a clean, dry environment in their original packaging.

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 an InnoFlue® involves working at a height, a full risk assessment must be conducted and appropriate safety measures put into place.


  • Installation of InnoFlue® does not require any special tools. Centrotherm recommends that the material temperature is not less than 32°F (0°C) during installation.


  • Pipes are joined by push-fit connections, with EPDM gaskets located in the sockets. Pipes and components must be installed with their socket ends to the outlet and male ends to the appliance.


  • Lubricate seals and male parts of pipes with CENTROCERIN lubricant or water only.
  • Push male end of pipe into opening with light twisting movement.


  • Components should be selected to minimize 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. Bends and other pre-formed components 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.