Cleaver-Brooks Flexible Watertube Boilers

The FLX is a UL listed package boiler that is versatile and can handle both commercial and Industrial applications. The compact 5-pass bent water-tube design provides efficiency ratings up to 81% (Steam) and 85% (Hot water).

The FLX Premix (FLXPM) boiler achieves best-in-class combustion performance with low emissions. Premix burner technology enables the boiler to attain <20 ppm NOx without FGR and <10 CO as standard on natural gas. The modulating burner control automatically adjusts the air/gas mixture for maximum efficiency and optimum turndown.

Read more about Cleaver-Brooks Flexible Watertube Boilers.

Size Range
35-600 HP (1,500 – 25,000 MBTU/hr)
For rapid response for low or high-temperature pressure heating, back up fuel oil and field erectable. Applications include heating for universities, medical facilities, office complexes and process applications such as manufacturing, food processing and pharmaceuticals.
#2 fuel oil and gaseous fuels
15 to 150 psig
Up to 88%
Available to <9 ppm

Available Products

Flexible Watertube Animated Demo