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Boilers

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If your home has hot water radiators in each room for heat, you have a boiler to heat the water. Like a furnace, the energy efficiency of a boiler is given as the Annual Fuel Utilization Efficiency (AFUE). Boilers manufactured since 1992 must have an AFUE of at least 80%. We offer a complete line of gas and oil boilers starting at 80% AFUE and up.

Gas Boiler Product Offering

KHB

Knight® Fire Tube Boiler

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Model Family: KHB
Annual Fuel Utilization Efficiency: 95% AFUE
Energy Star Rated: ENERGY STAR Most Efficient Product
Heat Exchanger Warranty: 15-Year Limited Warranty
Warranty: 5-Year Limited Parts Warranty
Manufacturer's Stated Benefits:
  • 6 Models from 55,000 to 285,000 Btu/hr
  • Up to 10:1 Turndown Ratio
  • ECM Variable Speed Boiler Pump
  • Features SMART SYSTEM™ Operating Control and CON·X·US® Remote Connect Capable
  • Three Boiler Setpoint Temperature Inputs
  • Built-in Cascading Sequencer for up to 8 Boilers, with Cascade Redundancy
  • Outdoor Reset Control with Outdoor Air Sensor
  • Programmable System Efficiency Optimizers
  • Four Pump Control
  • Domestic Hot Water Prioritization
  • Building Management System Integration
  • Access to BMS Settings through Graphic LCD Display
  • High-Voltage Terminal Strip
WHB

Knight® Fire Tube Wall Mount Boiler

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Model Family: WHB
Annual Fuel Utilization Efficiency: 95% AFUE
Energy Star Rated: ENERGY STAR Most Efficient Product
Heat Exchanger Warranty: 15-Year Limited Warranty
Warranty: 5-Year Limited Parts Warranty
Manufacturer's Stated Benefits:
  • 7 Models from 55,000 to 399,000 Btu/hr
  • Up to 10:1 Turndown
  • ECM Variable Speed Boiler Pump
  • Features SMART SYSTEM™ Operating Control and CON·X·US® Remote Connect Capable
  • Three Boiler Setpoint Temperature Inputs
  • Built-in Cascading Sequencer for up to 8 Boilers, with Cascade Redundancy
  • Outdoor Reset Control with Outdoor Air Sensor
  • Programmable System Efficiency Optimizers
  • Four Pump Control
  • Domestic Hot Water Prioritization
  • Building Management System Integration
  • Access to BMS Settings through Graphic LCD Display
NOBLE Combi

NOBLE Fire Tube Combi Boiler

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Model Family: NOBLE Combi
Annual Fuel Utilization Efficiency: 95% AFUE Efficiency
Energy Star Rated: N/A
Heat Exchanger Warranty: 10 year warranty
Warranty: 5 year warranty
Manufacturer's Stated Benefits:
  • SMART CONTROL™ Enhanced Operating System
  • Three Sizes 110,000, 150,000 and 199,999 Btu/Hr
  • Industry-Leading DHW Delivery Up to 4.8 GPM
  • True Instantaneous Response
  • Easy Installation and Serviceability
  • User-Friendly Interface
  • Designed, Engineered and Assembled in the USA