Commercial Boiler

As dependable as ever, the KNIGHT XL takes on a new look – refined and on-line. Now offered with inputs of 400,000, 500,000, 650,000, 800,000 plus 1 powerful addition, the 1 million Btu/hr model.

  • 97% Thermal Efficiency

    With advanced Neg/Reg technology, stainless steel heat exchanger and fully modulating burner, KNIGHT XL reaches a new high water mark.

  • Smart Touch™ Control

    Making set-up and service easier than ever, the LED touchscreen guides users through boiler navigation.

  • Access to Connections

    Utility connections are located on the back of the unit making single or multiple unit installations a snap.

  • Control from Anywhere

    Knight XL offers remote connectivity platform, CON-X-US®, as a standard feature. Diagnose or alter settings from anywhere.

Knight XL Water Heater

Ultimate Installation Flexibility

With 150 feet of available vent runs for the exhaust and air intake, challenging retrofits just got a little more accommodating with the KNIGHT XL. This powerhouse is also capable of common venting.

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Redesigned and On-Line

Innovation comes to life with the redesigned KNIGHT XL. Here you can learn more about features and specification details and read other literature.