Lochinvar 100159011 - Propane Conversion Kit for AWN400PM/KBN399/400/500/501/600NG

Transition your natural gas hydronic heating system to liquid propane operation using the 100159011 conversion kit. This factory-certified assembly is engineered for seamless compatibility with AWN400PM, KBN399, 400, 500, 501, and 600 series boilers, ensuring a reliable fuel source transition while maintaining strict manufacturer standards.

This kit recalibrates the combustion process by restricting the gas orifice diameter and adjusting the gas valve pressure settings. By matching these components to the energy density of propane, the system achieves precise stoichiometry, which prevents internal soot accumulation and preserves the modulation accuracy of the boiler's firing rate.

Key System Performance Baselines:

• Combustion Optimization: Properly calibrated orifices prevent carbon buildup and ensure clean ignition.
• Modulation Accuracy: Factory-spec components maintain the precise firing rate required for high-efficiency operation.
• Safety Compliance: Manufacturer-certified assembly ensures the transition meets all operational safety protocols.
• Energy Density Management: Precisely manages the fuel flow to accommodate the thermal characteristics of liquid propane.

⚠️ Application Profile: Use this kit strictly for field-converting Lochinvar AWN400PM and KBN series boilers from natural gas to propane where utility-grade liquid propane supply is established.

📋 Procurement & Shipping Notice

• LTL Freight Dispatch: Heavy commercial units ship directly via insured LTL carrier with delivery coordination included.
• Project Timelines & Submittals: Need guaranteed delivery dates, formal submittals, or tax-exempt processing?

👉 Request a Commercial Quote or contact our procurement team for direct freight scheduling.