For over 20 years, AMPCO has been a leading manufacturer of quality, multi-use, pressure stack chimney exhaust systems. AMPCO product installations and applications include boilers, generators, commercial kitchen grease duct, laboratory fume hoods and coffee roasters. All AMPCO products are UL tested and listed to the most stringent safety standards, ensuring you the finest product available.

  • Stainless steel inner wall construction for superior strength over traditional materials used. Outer wall options of stainless or paintable aluminized steel
  • Insulation options include 1” air or up to 4” of dense fiber blanket for stringent skin temperature requirements
  • Safety tested and listed to multiple UL standards, signifying compliance with U.S. and Canadian codes (UL 103HT, 641, 2561; ULC C959) 
  • 5” to 48” diameters (ID) to fit the wide range of commercial applications and customer specifications
  • 1400 °F maximum temperature rating with low clearance to combustibles (ref. installation instructions)
  • Array of components and accessories designed to make a complete installation simple and quick
  • Backed by AMPCO’s industry-leading commercial/industrial warranty

Venting/Exhaust Applications

Commercial – Industrial – Marine

  • Boilers
  • Generators/Engines/Turbines
  • CHP (Co-generation)
  • Coffee Roasters
  • Dryers
  • Water Heaters
  • Furnaces
  • Laboratory Fume Hoods

Used in schools and government facilities, office buildings, hotels, hospitals, restaurants, multi-story tenant spaces, data centers, retail space, factories, warehouses.


The Type B designation is assigned to gas venting systems that meet the safety
requirements of Underwriters Laboratories, Inc. The AmeriVent all-metal, double-wall
gas vent is listed as Type B by UL and is approved for residential and commercial
applications such as Category 1 water heaters, boilers, furnaces, space heaters, or wall
heaters. UL-approved Type B gas vent products form a continuous passageway from an
approved gas appliance to the termination of the vent above the roof of the structure.


Saf-T Vent and Saf-T vent CI Plus are single and double-wall vent options manufactured out of AL29-4C designed for optimal corrosion resistance. These are used with the fuel-efficient condensing boilers.

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