Available with respective inputs of up to 5 million and 4 million Btu/hr, CREST® Condensing Boiler models FBN5000 and FBN4000 feature fire-tube technology integrated with SMART TOUCH™ operating control and offer thermal efficiencies as high as 99%.
Introducing CREST®, a condensing boiler that operates at up to 99% thermal efficiency. Innovations like the Wave™ stainless steel fire tube and the SMART TOUCH™ control make CREST the best energy-efficient choice for a wide variety of commercial applications.