{"product_id":"ao-smith-100112349-natural-gas-burner-assembly-kit-18in","title":"Ao Smith 100112349 Natural Gas Burner Assembly Kit 18in","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe AO SMITH 100112349 is an 18-inch natural gas final burner assembly kit designed for gas-fired water heater systems. This kit includes a 39-orifice burner assembly that meters and distributes natural gas for combustion within the burner chamber. It is an OEM-style replacement component intended for installation by licensed plumbers or HVAC technicians servicing residential or light commercial water heating equipment. The assembly provides the critical interface between the gas valve and the combustion chamber, ensuring proper flame propagation across the burner surface.\u003c\/p\u003e\u003cp\u003eThis burner assembly kit is sized at 18 inches and configured for natural gas (NG) fuel type, making it appropriate for standard residential water heater applications where natural gas is the fuel source. It is not compatible with propane (LP) systems without a dedicated LP conversion kit. Technicians replacing failed or degraded burner assemblies during routine service or warranty repair will find this kit provides all necessary burner components in a single assembly.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e18-inch burner assembly length sized for compatible water heater tank configurations\u003c\/li\u003e\n\u003cli\u003e39-orifice design for controlled natural gas distribution across the burner surface\u003c\/li\u003e\n\u003cli\u003eNatural gas (NG) fuel type — not for use with propane without conversion\u003c\/li\u003e\n\u003cli\u003eComplete assembly kit format reduces sourcing of individual burner components\u003c\/li\u003e\n\u003cli\u003eHeating application rated for gas-fired water heater systems\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as an OEM-style replacement natural gas final burner assembly for compatible AO SMITH gas-fired water heaters requiring an 18-inch burner configuration with a 39-orifice specification. Confirm burner length and orifice count against the existing assembly before installation.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation should be performed by a licensed plumber or qualified gas appliance technician in accordance with local codes and the IFGC. Shut off the gas supply and allow the water heater to cool completely before disassembling the burner compartment. Inspect the burner orifices, thermocouple, and gas valve connections before reinstalling and relighting. After installation, check all gas connections for leaks using an approved leak-detection solution before returning the unit to service.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eFuel Type\u003c\/strong\u003e: Natural Gas (NG)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBurner Length\u003c\/strong\u003e: 18 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOrifice Count\u003c\/strong\u003e: 39\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eApplication\u003c\/strong\u003e: Heating\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eStandard Information\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand\u003c\/strong\u003e: AO SMITH\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 100112349\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"TAILWIND","offers":[{"title":"Default Title","offer_id":51149761872178,"sku":"100112349","price":168.59,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/305989952.jpg?v=1778600831","url":"https:\/\/voomisupply.com\/products\/ao-smith-100112349-natural-gas-burner-assembly-kit-18in","provider":"Voomi Supply","version":"1.0","type":"link"}