{"product_id":"oem-lennox-6-burner-inshot-burner-assembly-18l55","title":"OEM Lennox 6-Burner Inshot Burner Assembly — 18L55","description":"\u003cp\u003eThe genuine OEM Lennox \u003cstrong\u003e18L55\u003c\/strong\u003e inshot burner assembly (factory number 619795-06) is a complete 6-burner rack that feeds gas into the heat exchanger and produces the flame for combustion in compatible Lennox gas furnaces. The inshot design directs each flame precisely into its heat-exchanger tube so the ignitor lights and the flame sensor proves the burn on every heating cycle. Installing the correct factory assembly maintains proper flame shape, safe combustion, and consistent furnace performance.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eCommon failure symptoms:\u003c\/strong\u003e Burners that rust, warp, or clog can cause delayed or noisy ignition, flame rollout, popping or rumbling sounds, yellow flames, short cycling, or repeated lockouts from failed flame sensing. Soot buildup and incomplete combustion are also signs the burner rack needs replacing.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhy OEM matters:\u003c\/strong\u003e Lennox builds the \u003cstrong\u003e18L55\u003c\/strong\u003e to precise port sizing, spacing, and orifice alignment for its designated furnace platforms. Generic burners can alter flame behavior and undermine safe, efficient heating. The factory-specified part ensures exact fit, rated BTU input, and long-term ignition reliability for your Lennox system.\u003c\/p\u003e","brand":"Lennox","offers":[{"title":"Default Title","offer_id":63081128034675,"sku":"LNX-18L55","price":49.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-burner-inshot-LNX-18L55.jpg?v=1783759155","url":"https:\/\/nationalhvacparts.com\/products\/oem-lennox-6-burner-inshot-burner-assembly-18l55","provider":"National HVAC Parts","version":"1.0","type":"link"}