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Enervex – PowerStack

Multi-Application Single or Twin-Walled Exhaust
Designed to Convey Gases, Particles, Fumes, Smoke, Grease and Products of Combustion


PowerStack EPS system is a state-of-the-art, multi-application single or twin-walled exhaust product designed to convey gases, particles, fumes, smoke, grease and products of combustion.

Max Pressure: 60 inWG (14,945 Pa)

Max Temperature: 1,400°F (760°C) per UL2561


  • Industry-only multi-use chimney system with 9 UL listings
  • Only chimney system listed for use with Category I, II, III, and IV applications – in a single chimney system
  • 22 internal diameters ranging from 4 inches (100mm) to 48 inches (1,200mm)
  • Fully welded inner liner manufactured in corrosion resister bespoke 316L-PCM stainless steel
  • Outer jacket of 304 polished stainless steel
  • Double-wall with 1 inch (25mm), 2 inches (50mm) and 4 inches (100mm) insulation
  • Full range of components
  • Industry-only adjustable length UL listed to 60″WC pressure and 1,400°F operating temperature
  • Industry-first 3° elbows, 6° elbows, 87° elbows and 87° tees
  • Industry-first flanged male/female jointing system with graphite gasket
  • Industry-only 5-year performance and leakage guarantee

Listing Certifications:

  • UL 103, standard for factory-built chimneys for residential type and building heating appliances
  • UL1738, standard for venting system for gas-burning appliances, Category II, III, and IV
  • UL 1777, standard for chimney liners
  • UL 1978, standard for grease duct
  • UL 2561, standard for 1,400°F chimneys
  • ULC/ORD-C959, standard for 540° and 760°C industrial chimney
  • ULC-S645, standard for chimney lining systems for existing masonry or factory-built chimneys and vents
  • ULC-S636, standard for BH gas venting systems
  • ULC-S662, standard for factory-built grease ducts


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