CBIL2F: 2" ceramic fiber double wall stack

Positive Pressure Boiler Vents

  • Male/female slip-type jointing system
  • Laser welding
  • Stainless steel material
  • Industrial, institutional and commercial application


CBIL2F model Industrial Positive Pressure is a double wall stainless steel chimney with 2" ceramic insulation. This chimney is UL listed for positive pressure applications up to 60" water column.


  • Product Overview
  • Related Resources
  • Applications
  • Male/female slip-type jointing system
  • Inner wall standard 316L or 304 2B stainless steel (20 - gauge 6" to 40" & 18ga 42” to 48” diameter)
  • Outer wall: standard 316L, 304 2B stainless steel or aluminized steel (24 gauge - 6" to 40" diameter; 20 gauge - 42" to 48" diameter)
  • Full range of accessories including elbows, fittings guides and supports
  • Easy to assemble
  • Complete engineering
  • Laser welding


Our exclusive Male to Female Jointing System allows the parts of all models to fit into one another, thus eliminating the need for all kind of adapters and providing flexibility in your stack selection.


Basics of Boiler Venting for Safe Operation →

This webinar will cover the types of venting categories for condensing and non-condensing boilers and the requirements that need to be met for each., and pursued independence from local electrical grid.

Minimize Draft Loss Through Proper Exhaust System Design →

In this advanced venting webinar, attendees will learn about draft calculations and economizer considerations for single-boiler layouts and common venting.

Stack Installation Video →

  • Low and High Pressure Steam Boilers
  • Diesel and Turbine
  • Exhausts
  • Building Heating Equipment
  • Industrial furnaces
  • Kilns and Ovens
  • Incinerator
  • Coffee Roaster