Cleaver-Brooks | Products & Solutions | Boilers | Waste Heat | Waste Heat Boilers

Waste Heat Boilers

A-, O- and D-style designs

  • Steam
  • 10,000 to 500,000 lb/hr
  • Temperatures to 900°F
  • Steam pressures up to 2,300 psig
  • Gas flow rates up to 1,000,000 lb/hr 

The Cleaver-Brooks waste heat watertube boilers are offered in a single pass design or multiple pass design including furnace / radiant sections.

With our many years of custom energy recovery from combustors, industrial processes, and gasification processes, Cleaver-Brooks provides natural circulation designs with membrane wall construction.

Our single pass designs have the steam and water drums position parallel or perpendicular to the gas flow. These designs can incorporate an internal or external superheater, sootblowers, and economizers.

Our multiple pass designs include a radiant / furnace section to temper the heat of the flue gases before entering the screen or main evaporator bank. These designs are available in A-type, D-type, or O-type configurations.


  • Multiple casing design options (internally lined and insulated, refractory construction or membrane wall construction).
  • Vertical (top) or horizontal gas outlet conforms to space restrictions
  • Combination of bare and finned tubes depending on flue gas recovery
  • Full-length steam and hot water drums with manways on each end for easy access


  • Reduce Fuel Costs
  • Steam Solutions


  • Process Steam
  • Waste Heat Recovery