4WI Cleaver-Brooks Steam Firetube Boiler — Steam and Hot Water

CB Boiler Model 4WI

CB Boiler Model 4WI

Cleaver-Brooks 4WI BoilerThe Cleaver-Brooks Model 4WI is a wetback firetube boiler designed with 5 square feet of heating surface per boiler horsepower for maximum guaranteed efficiencies.

  • Steam and hot water
  • 100 to 800 HP
  • Natural gas, #2 and #6 oil
  • Combination oil/gas
  • 15 to 250+psig — steam
  • 30 to 125psig — hot water
  • Available to <9 ppm NOx


Product Overview

The Model 4WI is a complete package, including pressure vessel, integral burner, and controls. Components are designed and manufactured for reliability and long life, maximum safety, ease of maintenance, and the lowest emissions, guaranteed.

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.


  • 5 sq ft / boiler HP (except 800 HP)
  • Integral front head burner
  • Options for low-NOx control


  • Lower Fuel Cost
  • Lower Emissions


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