InnoFlue Polypropylene Vent Systems

InnoFlue® Polypropylene is a lightweight, high-performance venting system designed for the safe and efficient removal of flue gases from modern gas appliances.

Engineered to resist corrosion and high temperatures, its flame-retardant polypropylene material offers a durable, reliable alternative for flue gas venting systems while remaining easy to handle and quick to install.

Suitable for high-efficiency furnaces, boilers, and water heaters, the InnoFlue® range includes Single Wall Residential and Commercial systems, InnoFlue® Flex for vertical installations with offsets up to 45°, and InnoFlue® Concentric, which combines combustion air intake and exhaust in a single vent. Together, these solutions provide flexibility and efficiency for both residential and commercial applications.

Features & Benefits of InnoFlue®

Material & Sustainability

• High-performance polypropylene with higher operating temperatures than CPVC
• 100% recyclable, LEED-compliant material
• Environmentally friendly manufacturing process
• No chloride leaching to protect appliances

Performance & Safety

• Superior resistance to caustic condensates
• Excellent cold-weather performance
• Zero clearance to combustibles reduces installation footprint
• Suitable for gas, propane, and oil-fired appliances

Installation & Efficiency

• Lightweight and easy to cut, handle, and install
• No glues, primers, or solvents required
• Immediate appliance start-up after installation
• Long effective vent lengths reduce joints and installation time

Engineering & Reliability

• Precision male-to-female connections rated up to 5,000 Pa
• Smooth inner wall improves draft performance
• EPDM gaskets provide superior condensate resistance
• Tight seal rated to 20” water column

Certification & Warranty

• Tested and listed to UL-1738 and ULC-S636 standards
• Approved for use with a wide range of appliance manufacturers
• Backed by a 10-year limited manufacturer’s warranty

Patented Snap-On Connector Ring

• Fast, tool-free installation
• Allows post-installation adjustability
• Patented design reduces complexity and cost

Centrotherm InnoFlue® UL-1738 and ULC-S636 venting kits are engineered to simplify installation while ensuring full code compliance.

Available in Single Wall, Flex, and Concentric configurations, each pre-configured kit includes the essential components needed for safe, efficient flue gas venting in residential and commercial applications. 

Designed to meet rigorous North American safety standards, these kits reduce on-site decision-making, improve installation consistency, and help ensure reliable performance when venting modern gas appliances.