‹ All boilers Hot Water
Cleaver-Brooks Flexible Watertube (FLX) – Hot Water

Stand-alone or as a condensing/non-condensing hybrid, the FLX boilers share the load to increase efficiency. Designed to minimize thermal stress with quick response in a compact unit; with no FGR piping required, it’s easy to add to a new or existing system.
- Size range
- 1,500–25,000 MBTU/hr (35–600 HP)
- Uses
- Rapid-response heating & process — universities, medical, manufacturing
- Fuels
- #2 fuel oil and gaseous fuels
- Pressure
- 160 psig
- Efficiency
- Up to 88%
- Emissions
- Available to <9 ppm