Lochinvar KBX0400N - Knight XL Commercial Natural Gas Boiler, 399,000 BTU/hr
Lochinvar KBX0400N - Knight XL Commercial Natural Gas Boiler, 399,000 BTU/hr
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Engineered for high-demand commercial environments, the Lochinvar KBX0400N Knight XL provides exceptional thermal output and energy management. This 399,000 BTU/hr unit, part of the advanced Knight XL series, integrates seamlessly into modern mechanical rooms, delivering precise temperature control and reliability for large-scale hydronic heating systems.
This fire-tube boiler utilizes a high-grade stainless steel heat exchanger to capture maximum combustion energy, resulting in a consistent 97% thermal efficiency. The system features a 10:1 turndown ratio, allowing the burner to modulate its output to match specific load requirements, effectively reducing fuel waste and wear on system components.
Key System Performance Baselines:
- Thermal Efficiency: Achieves a consistent 97% rating for optimal gas usage.
- Modulation Range: Equipped with a 10:1 turndown ratio for precise load matching.
- Interface Capabilities: Includes an advanced touch screen with built-in remote connectivity for system monitoring.
- Primary Construction: Features a robust stainless steel water tube heat exchanger for extended service life.
⚠️ Application Profile: Ideal for multi-family residential complexes, large educational facilities, hospitality venues, and commercial office buildings requiring consistent, high-capacity space heating solutions.
| Performance Parameter | Engineering Baseline Value |
|---|---|
| Manufacturer Part Number | KBX0400N |
| Model Designation | KNIGHT XL Commercial Boiler |
| Fuel Type | Natural Gas |
| Thermal Efficiency | 97% |
| Input Capacity | 399,000 BTU/HR |
Corporate Procurement & PO Processing
Formal Purchase Orders (POs) and tax-exempt ordering are accepted for commercial contractors and institutional facilities.
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