Consistency in features and benefits across the KNIGHT Fire Tube Boiler family makes it easier to install and service no matter what model you choose.
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
Recent upgrades keep KNIGHT at the head of the class, allowing it to continue to lead the charge as the industry-leading high-efficiency residential boiler. Available in 13 models and more adjustable parameters than any other competitor, KNIGHT is the most flexible residential boiler you can install.
Universal Vent Connectors
Allows for easy installation of multiple vent materials.
Fire-Tube Heat Exchanger
Low pressure drop saves on pump operation costs and provides installation flexibility, while stainless steel fights corrosion.
ECM Variable Pump
ECM pump technology saves electricity and lowers operating costs. Variable speed pump is now standard equipment on all WHB and KHB boilers.
10:1 Modulation Turndown
Saves money on fuel costs.
Comes with a built-in 110V AC convenience plug. Use this handy standard feature to power your lighting or installation equipment—or for powering the condensate pump.
Loch-N-Link® USB Programming
Allows for saving of parameters onto a USB drive for use at a different job site.
Top and bottom water connection for the WHB. Top and left side utility connections for the KHB for easy retrofitting, such as a cast iron efficiency upgrade.