Cleaver-Brooks Boiler Exhaust Systems

High-quality installation-ready stacks and freestanding stacks with the latest design technology in combustion gas venting. Cleaver-Brooks stainless steel vents feature a male/female slip-type jointing system allowing the flexibility for various models to fit in one another eliminating the need for adapters making them easy to install. All vent systems are UL, cUL listed, laser welding and ideal or commercial, industrial, and institutional applications.

Chimney liners – single wall stack/liners

Boiler Exhaust – single wall, air insulation double wall stack, mineral fiber double-wall stack, ceramic fiber insulation double wall stack ranging from 1” to 4”. 

Freestanding stacks  – factory welded cylindrical freestanding stacks with single, inner, and outer structure options.

Special Gas Vents for Condensing Boilers – single wall stack/liner, air insulation double-wall stack, and mineral fiber double-wall stack from 1” to 2”. 

Grease Ducts  – Cleaver-Brooks stainless steel grease ducts feature a male/female slip-type jointing system allowing the flexibility for various models to fit in one another eliminating the need for adapters. Grease duct products are suitable for installations using exhaust system components for the removal of smoke and grease-laden vapors. Ideal for commercial, industrial and institutional applications ranging 2” to 4” in single wall, air insulation double-wall, and ceramic fiber double-wall types. 

Selective Catalytic Reduction (SCR) –  Cleaver-Brooks’ Selective Catalytic Reduction (SCR) system uses ammonia as a reducing agent, which is introduced into the flue gas stream. This mixture then comes in contact with a catalyst, selectively transforming the NOx into harmless nitrogen and water. With the addition of SCR, NOx emissions can be reduced down to 1 ppm. SCR works with firetube, industrial watertube, heat recovery, and retrofit boiler applications.

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