4WG Cleaver-Brooks Hydronic Firetube Boiler — Steam and Hot Water

R.F. MacDonald Co. services and sells boilers, pumps and accessories for commercial and industrial applications

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CB Boiler Model 4WG

CB Boiler Model 4WG

Cleaver-Brooks Boiler Model 4WGThe Cleaver-Brooks Model 4WG firetube boiler is a 4-pass wetback-integrated package designed for hot water or low- and high-pressure steam applications.

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

Product Overview

Integrated package includes pressure vessel, ProFire® packaged burner, and controls for optimal fuel-to-steam/water efficiency, space savings, and low emissions.

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.


• Wetback boiler design
• 5 sq ft / boiler HP
• ProFire packaged burner
• Options for low-NOx control
• Options for Hawk control system


• 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