CBJT Firetube Boiler

Firetube Boilers

  • 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


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 preferred.

  • Product Overview
  • Related Resources
  • Applications
  • Dryback or Waterback boiler design
  • 5 sq ft / BHP or EX technology
  • ProFire packaged jet burner
  • Low emissions options available
  • Hawk controls available


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 contructed 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.


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There are a number of factors that are important to consider when installing either a steam or hydronic boiler system in order to maximize safety, reliability and efficiency.

University of Michigan-Dearborn Replaces Old Steam System Case Study →

  • Process Steam
  • Industrial Process
  • Building Heat
  • Sterilization
  • Humidification
  • Hospital and Healthcare
  • Power and Utilities
  • Refineries and Petrochemical
  • Laundry and Dry Cleaning