{"product_id":"oem-lennox-inshot-burner-71l03","title":"OEM Lennox Inshot Burner — 71L03","description":"\u003cp\u003eThe Lennox \u003cstrong\u003e71L03\u003c\/strong\u003e is a genuine OEM inshot burner that delivers and ignites the gas-air mixture inside your Lennox furnace's heat exchanger. Precisely formed to direct the flame into the exchanger tube, it ensures clean, complete combustion and even heat transfer, working alongside the igniter, gas valve, and flame sensor during every heating cycle.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eCommon failure symptoms:\u003c\/strong\u003e yellow or lazy flames instead of crisp blue, delayed ignition or rollout, rust and scale buildup, clogged burner ports, soot, and short cycling on the flame sensor. Corrosion, dust, and years of combustion exposure gradually degrade burner performance.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhy OEM matters:\u003c\/strong\u003e A factory Lennox \u003cstrong\u003e71L03\u003c\/strong\u003e inshot burner is machined to the exact port size, orifice alignment, and flame geometry your furnace requires for safe, efficient combustion. Aftermarket burners can alter flame characteristics and combustion quality, risking incomplete burn and safety faults. OEM ensures proper flame stability, efficiency, and warranty protection.\u003c\/p\u003e","brand":"Lennox","offers":[{"title":"Default Title","offer_id":63081145663859,"sku":"LNX-71L03","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-71L03.jpg?v=1783762202","url":"https:\/\/nationalhvacparts.com\/products\/oem-lennox-inshot-burner-71l03","provider":"National HVAC Parts","version":"1.0","type":"link"}