D-Type Watertube Boiler

Industrial Watertube Boilers

  • Assembly: Shop or Field Assembled
  • Steam Flows (lb/hr): 10,000 - 500,000
  • Construction: Membrane Wall Construction
  • Emissions (ppm NOx): <5 with SCR
  • Steam Temperature: Up to 1,050 deg F
  • Fuel: Natural Gas, Propane, Digester, #2-#6 Oil, Refinery Fuels, Alternative Fuels
  • Circulation: Natural Circulation
  • Type: D-type
  • Steam, temperatures to 1,050°F
  • 10,000 to 500,000 lb/hr
  • Natural Gas, #2 and #6 oil, refinery fuels, alternative fuels, combination
  • Design pressure up to 1,800 psig
  • Available to less than 5ppm NOx, Ultra-Low CO


The Cleaver-Brooks Nebraska D-type industrial watertube boiler provides up to 1,050°F superheated steam in the lower-maintenance D configuration. 


IWT boilers can fire renewable natural gas, biogas and hydrogen. They achieve <2 ppm NOx with an ultra-low NOx burner and SCR equipment, and options are available to increase boiler efficiency by 5% on average.

  • Product Overview
  • Related Resources
  • Applications
  • Furnace construction utilizes a welded-membrane wall design.
  • Convective and interstage superheaters.
  • Large, water-cooled, gas-tight furnace areas.
  • Boiler wall constructions are 100% water-cooled and refractory-free.
  • Only single-source supplier for integrated boiler, burner, and control solutions.
  • Radiant superheater designs are available.
  • Can accommodate selective catalytic reduction (SCR) and CO catalyst.


The D-type is a 100% membrane water-cooled furnace, reducing costly, time-consuming, annual maintenance. The front and rear walls are welded and refractory-free, as well as the burner throat, when integrated with our Natcom® burner. D-type boilers can be customized to provide superheated steam. We offer both single- and dual-stage integral superheater systems with optional temperature control over turndown.


Cleaver-Brooks Engineers Custom-Design D-Type Superheated Steam Boiler →

The City of Medicine Hat is a Power Plant in Alberta, Canada that desired an upgrade to its power station to better service area residents.

Buffalo Trace Installs New Boiler System →

Buffalo Trace was able to meet changing steam demands, significant fuel savings and reduced emissions.


Designing Large Package Boilers →

Custom Industrial Watertube Boiler Animated Video →

  • Process Steam
  • Industrial Process
  • Building Heat
  • Hospital and Healthcare
  • Power and Utilitiesl
  • Refineries and Petrochemical
  • Pharmaceutical
  • Pulp and Paper
  • Schools
  • Food & Beverage