
Cleaver-Brooks Firetube Steam Boilers
Model CBEX
The CBEX boiler uses advanced engineering, including Computational Fluid Dynamics (CFD), to optimize components like the burner, furnace, and tubes, ensuring balanced heat release and reduced thermal stress. Exclusive EX system tubes enhance heat transfer by 85%, achieving higher efficiency in a compact design. An optional stack economizer recovers flue gas heat to preheat feedwater, reducing fuel consumption. The LevelMaster low-water cutoff provides the safest pump control available.
- Steam up to 300 psig
- 100 to 2,500 HP
- 2 Pass, 3 Pass or 4 Pass
- Natural gas/propane, #2 light oil, combination
- Waterback or Dryback design
Model CBLE
The CBLE firetube boiler is a reliable, long-lasting package with a pressure vessel, burner, and controls, designed for safety, low emissions, and easy maintenance. Upgrade with Cleaver-Brooks controls, economizers, and water treatment systems to create a state-of-the-art boiler room.
- Steam up to 300 psig
- 50 to 800 HP
- 4 Pass
- Natural gas/propane, #2 and #6 oil, combination
- Alternate fuel capability
- Waterback or Dryback design

Model CBJT
The CBJT is a complete boiler package with a pressure vessel, burner, and controls, offering high fuel efficiency, compact design, and low emissions. Built for hot water or steam applications, it prioritizes safety, maintenance ease, and optional upgrades. Enhance your system with Cleaver-Brooks controls, economizers, and water treatment for a state-of-the-art boiler room.
- Steam up to 300 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
Model ICB
The integrated package includes a pressure vessel, ProFire® packaged jet burner, controls, and the latest advances in combustion technology. 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.
- Steam up to 300 psig
- 100 to 800 HP
- 3 pass
- Natural gas/propane, #2 and #6 oil, combination