DuraVent FasNSeal® Venting Systems
Safe. Durable. Engineered for Performance.
Raven Supply is proud to carry DuraVent’s FasNSeal® line of venting systems, designed for commercial and industrial appliances with positive, condensing, or Category II, III, and IV gas-fired systems. Built from superior AL29-4C® stainless steel, FasNSeal products provide maximum corrosion resistance, ensuring long-lasting performance in even the harshest environments.
The FasNSeal family offers venting solutions for a wide range of high-efficiency appliances—including boilers, water heaters, and warm air furnaces—where traditional venting materials cannot withstand the acidic flue condensate. With easy-to-install designs and precision engineering, these systems deliver safe, efficient venting while reducing installation time and maintenance requirements.
Key Features
- AL29-4C® Stainless Steel Construction for superior corrosion resistance
- Designed for Category II, III, and IV gas-fired appliances
- Tested and listed to UL 1738 / ULC S636 for positive pressure and condensing systems
- Double-wall and single-wall options available for installation flexibility
- Modular, easy-to-install design with secure gasketed connections
- Ideal for boilers, water heaters, and commercial heating systems
Why FasNSeal®?
With a proven track record across North America, FasNSeal® venting systems are trusted by engineers, contractors, and facility operators for projects requiring reliability, safety, and long-term durability. Whether you’re upgrading an existing system or installing new high-efficiency appliances, FasNSeal offers the peace of mind that comes with industry-leading design and performance.
Learn more
Please contact our team for more information on this product.