{"product_id":"oem-lennox-heat-exchanger-assembly-47m49","title":"OEM Lennox Heat Exchanger Assembly — 47M49","description":"\u003cp\u003eThe genuine OEM Lennox \u003cstrong\u003e47M49\u003c\/strong\u003e heat exchanger assembly is the primary heat-transfer component in your Lennox gas furnace, drawing heat from the combustion chamber into the circulating air while forming a sealed barrier against exhaust gases. Built to Lennox factory tolerances, it returns your furnace to its rated heating capacity and efficiency.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eCommon failure symptoms:\u003c\/strong\u003e Signs of a compromised exchanger include visible cracks, rust or scaling, a burner flame that rolls out or flickers as the blower runs, recurring limit-switch trips, short-cycling, or a lingering combustion smell. Cracks can leak carbon monoxide into your home's air, making immediate replacement essential.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhy OEM matters:\u003c\/strong\u003e Because it is a safety and pressure-tested part, the genuine Lennox \u003cstrong\u003e47M49\u003c\/strong\u003e is the only way to ensure the correct metallurgy, weld strength, and precise fit your furnace requires. Aftermarket replacements can compromise combustion sealing and void your equipment warranty. Install the OEM assembly for safe, reliable, code-compliant heating.\u003c\/p\u003e","brand":"Lennox","offers":[{"title":"Default Title","offer_id":63081070395763,"sku":"LNX-47M49","price":399.95,"currency_code":"USD","in_stock":true}],"url":"https:\/\/nationalhvacparts.com\/products\/oem-lennox-heat-exchanger-assembly-47m49","provider":"National HVAC Parts","version":"1.0","type":"link"}