{"product_id":"oem-lennox-heat-exchanger-assembly-12y83","title":"OEM Lennox Heat Exchanger Assembly — 12Y83","description":"\u003cp\u003eThe genuine OEM Lennox \u003cstrong\u003e12Y83\u003c\/strong\u003e heat exchanger assembly (factory references 614580-04 and 613000-04) is the combustion heart of your furnace, transferring burner heat into the circulating air while isolating hazardous flue gases from your home. It is produced to the exact tube geometry, wall thickness, and mounting layout required by the Lennox furnace models it serves for correct heat transfer and airflow.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eCommon failure symptoms\u003c\/strong\u003e include cracked or rusted-through exchanger tubes, a wavering or rolling burner flame, soot and corrosion buildup, unusual smells during heating cycles, and repeated safety-limit or flame-sensor lockouts. A cracked exchanger can leak carbon monoxide into the airstream, making timely replacement essential.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhy OEM matters:\u003c\/strong\u003e a genuine Lennox \u003cstrong\u003e12Y83\u003c\/strong\u003e assembly is built and certified to the original thermal, pressure, and safety specifications of your unit. Aftermarket exchangers frequently vary in fit, materials, and longevity, leading to reduced efficiency, premature cracking, and voided warranty coverage. The OEM part safeguards both your furnace's rated performance and your household's safety.\u003c\/p\u003e","brand":"Lennox","offers":[{"title":"Default Title","offer_id":63081075114355,"sku":"LNX-12Y83","price":39.95,"currency_code":"USD","in_stock":true}],"url":"https:\/\/nationalhvacparts.com\/products\/oem-lennox-heat-exchanger-assembly-12y83","provider":"National HVAC Parts","version":"1.0","type":"link"}