Security Chimneys


The Secure Stack Pro Series, Models SCL, CAX1, CIX1, CIX2, CIX4, and CIX3Z venting systems are designed to offer the ultimate in installation convenience and versatility for a variety of applications. Certified for commercial chimney and diesel exhaust applications, they are constructed of thick-gauge material for the inner pipe that provides a strong and rigid assembly. Featuring a self-centering flue extension design that significantly simplifies and accelerates the installation process.

Available in sizes from 5″ to 36″ diameters, the CIX line offers double-wall configuration with a choice of 1″, 2″, 4″, or 3″ insulation and the CAX line offers a 1″ air insulated product. For premium corrosion resistance and durability, the inner flue is constructed from 0.035″ thick 304 or 316 Stainless Steel. This is coupled with a 0.024″ thick 304 Stainless Steel or Galvalume (Aluminum-zinc coated) steel outer casing. The CIX line features the highest-quality insulation, densely packed to ensure low heat loss and maximum draft.

  • The CIX, with its 2″ densely packed insulation, and CAX, with 2″ of air, ensure low heat loss and maximum possible draft
  • CIX: certified at 1″ clearance to combustibles and 2″ for grease ducting applications; CAX: certified at 4″ clearance to combustibles
  • Thick-gauge 304 or 316 stainless steel inner liner provides a strong and more rigid assembly
  • Patented self-centering assembly system combined with low weight simplifies and accelerates installation
  • Coupling configuration requires only one locking band on outside of pipe and the use of a regular, less- expensive high-temperature silicone sealant
  • Outside casing available in 304 or 316 stainless steel as well as Galvalume® (Aluminum-zinc coated) material for a lower-cost option
  • Available in sizes from 5″ to 36″ diameters
  • Complies with the following:
    • UL-103 60″ WC positive-pressure and 1400°F building heating appliance chimney standard
    • ULC-ORD959 and ULC-S604 chimney standards
    • UL-1978 for grease duct applications.
  • 1-year and 15-year limited warranty options available

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CIX – Boiler applicationCIX – Diesel application
CIX - Boiler applicationCIX - Diesel application