Industrial FLX Watertube Boiler — Steam and Hot Water

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

510-784-0110Contact Form

CB Boiler Model FLX

CB Boiler Model FLX

CB Boiler Model FLXThe model FLX Flexible Watertube Boiler is designed to minimize thermal stress and provide quick response in a compact unit. There is also a field-erectable option. The compact footprint design offers 160 psig hot water applications or 15 psig and 150 psig steam applications with optional design to 250 psig.

• Steam or hot water
• 1.5 to 25.0 MMBTU/hr
• Natural gas, #2 Light Oil, propane, digester
• 15 to 250 psig on steam
• 160 psig on hot water
• Available to < 9 ppm NOx

Product Overview

The FLX has distinct design features that include non-welded tube attachment for ease of tube replacement. The package includes a ProFire® burner for a completely integrated and engineered solution from a single source. Removable sectioned side panel design permits full access to all tubes.


• Lower Fuel Cost
• Lower Emissions


• Process Steam
• Industrial Process
• Building Heat
• Sterilization
• Hospital and Healthcare