{"product_id":"oem-lennox-burner-box-assembly-lb-90883-41l97","title":"OEM Lennox Burner Box Assembly (LB-90883) — 41L97","description":"\u003cp\u003eThe Lennox \u003cstrong\u003e41L97\u003c\/strong\u003e (factory reference LB-90883) is a genuine OEM burner box assembly for Lennox gas furnaces. The burner box houses the burners that mix gas and air for combustion at the heat exchanger inlet, making it a core component of your furnace's heating cycle. It is engineered to the exact dimensions and gas-flow characteristics your Lennox unit was certified with.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eCommon failure symptoms:\u003c\/strong\u003e When the burner box or its burners degrade you may notice delayed or rough ignition, a yellow or lifting flame instead of a crisp blue one, rumbling or popping on startup, sooting, or a furnace that repeatedly locks out on flame-sense or safety faults.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhy OEM matters:\u003c\/strong\u003e Combustion components are safety-critical. Aftermarket burner boxes can alter flame geometry, air-fuel mixing, and clearances — risking incomplete combustion, carbon monoxide, or nuisance shutdowns. The OEM Lennox \u003cstrong\u003e41L97\u003c\/strong\u003e guarantees correct fit and the combustion performance your equipment was designed and listed for, protecting both efficiency and safety.\u003c\/p\u003e","brand":"Lennox","offers":[{"title":"Default Title","offer_id":63081123807603,"sku":"LNX-41L97","price":49.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-burner-ribbon-LNX-41L97.jpg?v=1783759542","url":"https:\/\/nationalhvacparts.com\/products\/oem-lennox-burner-box-assembly-lb-90883-41l97","provider":"National HVAC Parts","version":"1.0","type":"link"}