Exhaust Solutions

Boiler Exhaust Solutions

High quality installation-ready stacks and freestanding stacks with the latest design technology in combustion gas venting. Features a male/female slip-type jointing system which allows flexibility for various models to fit in one another and eliminates the need for adapters for easy installation. All vent systems are UL, cUL listed, laser welding and ideal or commercial, industrial and institutional use.

  • Chimney Liners
  • Boiler Exhaust
  • Freestanding Stacks
  • Special Gas Vents for Condensing Boilers

Grease Ducts

Grease duct products are suitable for installations using exhaust system components for removal of smoke and grease laden vapors. For commercial, industrial, institutional and similar type applications

Selective Catalytic Reduction (SCR)

The Industry’s only totally integrated system, Selective Catalytic Reduction (SCR) is a post-flue gas treatment that is capable of reducing NOx emissions from a wide variety of boiler systems. SCR is one of the most effective ways of reducing NOx in a flue gas stream, with reductions up to 95%. Works with Firetube, IWT, HRSG, and retrofit boilers.

Selkirk Metalbestos

Selkirk is a leading brand of chimney, venting and air distribution products for the commercial and residential HVAC and hearth industries.  Selkirk products are designed for sustainable performance in installation, efficiency, comfort and safety.  They go beyond varying codes and meet the rigorous standards of Underwriters Laboratories.

Model PS 

Stainless Steel Double Wall Positive Pressure Venting Systems. Modular, prefabricated venting systems which embody flanged joints designed for both quick assembly and pressure-sealing capabilities. Designed for steam boilers and non-condensing boilers, rated for up to 1400 deg. F

Selkirk also offers:

  • Exhaust Venting for Generators
  • Kitchen Exhaust
  • Other Non-Boiler Related Applications

Learn more about Selkirk Products


Heatfab® is the leading manufacturer of high-quality venting systems for Special Gas Vent applications, specified by OEMs for over 20 years. Our Saf-T Vent® line of products are designed for optimal corrosion resistance. This enables the safe and reliable operation of fuel-efficient appliances in demanding applications.

Saf-T Vent® CI Plus 

Rated for up to 550 deg. F, Saf-T-Vent CI Plus is constructed of the highest quality, most corrosion resistant, super-ferritic stainless steel alloy available, AL29-4C® inner / 430 BA outer (mirror-like finish) Available in an array of components and accessories designed to make installation simple and quick.

Heat Fab also offers:

  • Saf-T Vent EZ Seal
  • Saf-T Vent GC
  • Saf-T-Vent SC (Sealed Combustion)

Learn more about HeatFab Products