Cleaver-Brooks Model M5M Boiler

Membrane Wall Watertube

  • Steam or hot water  
  • 2,000 to 6,000 MBTU/hr 
  • Steam to 500 psig
  • Achieves <20 ppm NOx and <10 ppm CO
  • Premix burner technology 

Designed for steam applications up to 500 psig, hydronic comfort heating to 180°F or process water temperature to 410°F, this watertube boiler delivers big in a compact design, yet does not consume extra real estate.

Whether your application is a small batch load for food processing, or you are considering a hybrid heating system, the M5M provides an environmental solution to meet today’s energy and emissions standards. Equipped with a premix surface combustion burner, the M5M is environmentally friendly out of the box.


  • Integral burner for maximum efficiency
  • Linkageless control automatically adjusts the air/gas mixture
  • Maintains peak operating efficiency during low system demand
  • Increases boiler room floor space by 50%

For .dwg and .dxf drawing viewer download the AutoDesk TrueView.

Select one of the models listed below.


  • Small Footprint 
  • Lower Emissions 
  • Reduced Burner Control Maintenance


  • Process Steam 
  • Building Heat 
  • Sterilization 
  • Humidification 
  • Valve Testing 
  • Laundry and Dry Cleaning