Knight XL

• Up to 94.6% Thermal Efficiency
• 399,000 to 800,000 Btu/Hr
• Smart System Control
• Internal Cascade Sequencer
• PVC, CPVC or SS Vent – up to 100 ft.
• Condensing Stainless Steel Heat Exchanger
• Fully Modulating Burner with 5:1 Turndown