KNIGHT XL™ Condensing Boilers — 97% Thermal Efficiency

The KNIGHT XL Series commercial condensing boilers are engineered for efficiency, reliability, and flexible installation. Each model delivers 97% thermal efficiency with advanced control technology, stainless-steel heat exchangers, and factory-assembled components for plug-and-play performance.

Performance & Models

Standard Equipment (Factory Installed)

• SMART TOUCH™ control with color display
• Modbus and BACnet® MSTP communication
• 10:1 turndown ratio (modulating burner)
• Stainless steel heat exchanger
• Low NOx premix burner
• Variable-speed combustion fan
• Direct vent-ready with 4" or 6" connections
• Built-in gas valve and regulator assembly

In the Box

• Condensate neutralization kit
• Pressure relief valve
• Boiler sensor and vent temperature sensor
• Installation and operation manual

Applications

Ideal for commercial hydronic heating, schools, office buildings, and mechanical system retrofits where high efficiency and dependable operation are essential.

Note: We will contact you during order fulfilment to discuss shipping and handling costs for products weighing more than 150 pounds. These costs will be billed separately.