• Steam up to 300 psig
• Hot water up to 125 psig
• 100 to 2,500 HP
• 2 Pass
• Natural gas/propane, #2 light oil, combination
• Waterback or Dryback design
• Offers 30 ppm NOx with 3% O2 across the 10:1 turndown range
• Sub 5 ppm NOx without SCR available
• Meets 10 ppm CO requirement
• Highest operating efficiency of any scotch marine firetube boiler
• Exclusive Cleaver-Brooks integral head burner with air-cooled front head
• Hawk controls for maximum efficiency
• Single source boiler, burner and control
• Maximum excess air across the operating range
• Small footprint

The Cleaver-Brooks CBEX firetube boiler featuring EX technology is a completely integrated boiler, burner, and controls system. Every core component has been designed and built by Cleaver-Brooks to work together, resulting in the most efficient and lowest-emissions firetube system ever built. The CBEX achieves higher operating efficiency than competitors’ boilers, leading to lower fuel consumption over the life of the boiler. It can also burn renewable fuels and meets the lowest possible emissions of <5 ppm NOx, <10 ppm CO without SCR, helping achieve both emissions reduction and decarbonization goals. Using advanced engineering methods, design engineers designed the CBEX to optimize every component of the boiler, including the burner, the furnace, and the tubes, in order to provide optimally balanced heat release zones and minimizing thermal stresses in the boiler. Extended heat transfer tubes only found in EX systems uses Computational Fluid Dynamics (CFD) calculations to optimize the geometry of the tube and increase heat transfer by 85%. The result of the advanced heat transfer design is higher efficiency in a smaller footprint. Offered in a two-pass, waterback or dryback design, the CBEX boiler package is engineered for long life, highest part load (or operational) fuel-to-steam/water efficiency, maximum safety and lowest emissions. Its quiet operation, ease of maintenance and flexibility to add desired options further enhances the package. Integration of the core components is the key to the CBEX systems. The superior Hawk control allows the boiler to run at the absolute maximum efficiency. Reduce fuel use with the optional stack economizer by recovering waste heat from flue gasses and using it to preheat boiler feedwater. The LevelMaster low-water cutoff and pump control is the safest control available.

• Steam up to 300 psig
• Hot water up to 125 psig
• 50 to 1,600 HP
• 2, 3 and 4 Pass
• Natural gas/propane, #2 light oil, #6 oil or combination
• Dryback or Waterback design
• Available to < 30 ppm NOx emissions on 2 & 3 pass models
• Available to <9 ppm NOx emissions on 4 pass models
• Dryback or Waterback boiler design
• 5 sq ft / BHP or EX technology
• ProFire packaged jet burner
• Low emissions options available
• Hawk controls available

The Cleaver-Brooks CBJT firetube boiler has been designed to serve a wide range of applications. Built to utilize different Cleaver-Brooks exclusive technologies, from the robust pressure vessel, to the burner and controls, the CBJT is the ideal choice when an external jet burner is preferred. The CBJT features excellent fuel-to-steam/water efficiency and flexible burner options that can burn renewable fuels and help meet emissions reduction goals, lowering emissions to <30 ppm NOx and <50 ppm CO. The CBJT is a complete package, including pressure vessel, integral burner, and controls. Engineered by Cleaver-Brooks to be a fully compatible boiler and burner package featuring excellent fuel-to-steam/water efficiency, space savings, and low emissions. The versatile Cleaver-Brooks CBJT also has the flexibility to add desired options to further enhance the package. The CBJT is offered in a 2-, 3- or 4-pass design. It is ruggedly constructed for hot water or low and high pressure steam applications. For customers who prefer the jet burner design, the CBJT provides the highest value, with a focus on safety, ease of maintenance, lowest emissions and the flexibility to add desired options to further enhance the package. Upgrade or retrofit your system with Cleaver-Brooks controls, economizers, water treatment systems, and all the other system components to build a state-of-the-art boiler room of virtually any size and capacity.