NOBLE® Fire Tube Boiler

Model Family: NKB

Annual Fuel Utilization Efficiency: 95% AFUE

Energy Star Certified: Energy Star

Heat Exchanger Warranty: 10-year warranty

Warranty: 5-year parts warranty

Manufacturer's Stated Benefits:

• 6 Models from 55,000 to 285,000 Btu/hr

• Features SMART SYSTEM™ Operating Control and CON·X·US® Remote Connect Capable

• Up to 10:1 Turndown Ratio

• ECM Variable Speed Boiler Pump

• Universal Vent Connectors Allows for easy installation of multiple vent materials.

• Fire-Tube Heat Exchanger