Lochinvar & A.O. Smith 100073258 Burner Assembly

The Lochinvar & A.O. Smith 100073258 Burner Assembly is a precision-engineered genuine OEM replacement part essential for maintaining the combustion integrity of high-efficiency gas-fired systems. This industrial burner assembly is specifically designed for integration with Lochinvar Copper-Fin II (CF300-750) water heaters and ER150-400 residential pool heaters. By ensuring a precise fuel-to-air mixture, this component facilitates optimal thermal efficiency and consistent heat distribution across the exchanger. As a direct OEM heating part, it eliminates the compatibility risks associated with aftermarket alternatives. Built to withstand the rigorous thermal cycling of commercial and residential applications, the 100073258 burner reduces atmospheric nitrogen oxide emissions and stabilizes burner flame patterns. For contractors, this assembly represents a drop-in solution that restores equipment to factory performance specifications, minimizing diagnostic time and labor costs during HVAC system maintenance. Verify your specific model compatibility with the Copper-Fin II or pool heater series to ensure proper manifold alignment and ignition sequencing.

• Direct OEM Integration: Replaces Lochinvar 100073258 and legacy part numbers BNR2400 and 100135229 for a perfect mechanical fit.
• Enhanced Combustion Efficiency: Engineered to provide a clean, stable flame for maximum BTU output and reduced fuel consumption.
• Broad Application Range: Validated for use in Lochinvar water heaters and Energy Rite pool heaters (ER series).
• High-Temperature Durability: Constructed from premium-grade materials to prevent warping and degradation in high-intensity thermal environments.

What specific models is the 100073258 burner assembly compatible with?
This assembly is primarily utilized in Lochinvar Copper-Fin II models CFN300 thru CFN750 and CWN300 thru CWN750, as well as Energy Rite residential pool heaters (models ER150 thru ER400).

Are any additional gaskets or ignitors included with this assembly?
This SKU (100073258) typically consists of the burner tube assembly itself. It is standard practice for HVAC technicians to inspect and potentially replace related ignitor gaskets or flame sensors during the installation of a new burner to ensure a proper seal.

Is this part suitable for both natural gas and liquid propane units?
Yes, the burner tube is designed for universal gas application; however, ensure your orifice sizing and gas valve settings match the specific fuel type of the unit being serviced.

This item is not eligible for free shipping.

Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.