Lochinvar & A.O. Smith 100135270 Burner

When you're out in the field servicing a Lochinvar Copper-Fin II or high-capacity A.O. Smith water heater, combustion consistency is everything. The Lochinvar & A.O. Smith 100135270 Burner is the direct OEM replacement for the aging BNR30011 assembly. This critical component is engineered specifically for 500-750 KBTU systems, delivering the precise atmospheric mixing required to prevent soot accumulation and maintain high-efficiency thermal output. Featuring an integrated compression fitting, this main burner tube ensures a gas-tight seal at the manifold, simplifying the swap-out during annual maintenance or emergency repairs on CB/CW 497 to 747 models. As a veteran technician, you know that using genuine OEM HVAC parts is the only way to guarantee that the flame pattern meets factory specifications for the heat exchanger, protecting the refractory and ensuring long-term operational reliability without the headache of "universal" fitment issues.

• Precise Compatibility: Direct fit for Lochinvar Copper-Fin II models CB 497-747 and A.O. Smith CW 497-747 series.
• Durable Construction: High-grade stainless steel burner tube designed to withstand high-temperature combustion environments.
• Leak-Free Seal: Includes the factory-spec compression fitting for a secure, professional connection to the gas manifold.
• Optimized Efficiency: Engineered to restore factory-standard 500-750 KBTU performance and clean combustion cycles.

• Does this burner include the mounting hardware? This assembly includes the burner tube and compression fitting; we recommend inspecting your existing mounting screws and gaskets for wear during installation.
• Is this compatible with natural gas or propane? It is designed for standard manifold configurations; always verify your specific model's orifice requirements before firing the unit.
• Can I clean my old burner instead of replacing it? While light soot can be brushed off, any signs of pitting, port clogging, or oxidation on the 100135270 burner indicate it’s time for a replacement to avoid delayed ignition.

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.