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Cleaver-Brooks CBEX Firetube Boiler

Cleaver-Brooks CBEX Firetube Boiler

  • 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

The Cleaver-Brooks Model CBEX firetube boiler featuring EX technology is a completely integrated boiler, burner, and control 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.

Take a sneak peek at the furnace area in one of our CBEX boilers recently installed in the Philadelphia region.
All CBEX boilers are guaranteed to operate at 3% excess oxygen throughout the entire firing range and also provide high-turndown capabilities. Even at low fire, the integral burner and larger furnace area provide cooler combustion, allowing for lower O2 operation.



Cleaver-Brooks is the industry leader in providing energy-efficient, low-emissions boiler room products. With the power of total integration, only Cleaver-Brooks can offer a complete boiler room solution that is designed, engineered, and manufactured (by one company) to work seamlessly together.
By selecting Cleaver-Brooks, you can forget about having to cobble together a boiler room with different manufacturers and hoping they’ll all work together. Instead Cleaver-Brooks will provide the boiler, burner, controls and all accessory equipment to remove the headaches and provide one source of accountability for your boiler room.
Cleaver-Brooks offers an extensive range of steam boilers from 10 horsepower to 1,000,000 pounds of steam per hour including firetube, industrial watertube, flexible watertube commercial, electric, and heat recovery boilers.

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Manufacturers by Sales & Service Region

Delval represents many manufacturers, including Cleaver-Brooks, the world's largest manufacturer of packaged boilers.
Full list of manufacturers we represent by Sales & Service Region are as below: