{"product_id":"oem-lennox-heat-exchanger-assembly-14d50","title":"OEM Lennox Heat Exchanger Assembly — 14D50","description":"\u003cp\u003eThe genuine OEM Lennox \u003cstrong\u003e14D50\u003c\/strong\u003e heat exchanger assembly — also referenced by numbers 612998-01 and 610280-02 — is the sealed metal chamber that captures heat from your furnace's burners and passes it to the circulating air, all while isolating dangerous combustion byproducts from your indoor air. It is built to Lennox factory tolerances for a direct, reliable fit.\u003c\/p\u003e\u003cp\u003eWhen a heat exchanger begins to fail, you may notice cracking or corrosion in the metal, a distorted or roaring burner flame, soot deposits, strange smells, or elevated carbon monoxide readings. Because these symptoms carry real safety risks, a compromised exchanger should be replaced without delay rather than patched or ignored.\u003c\/p\u003e\u003cp\u003eInstalling the OEM Lennox \u003cstrong\u003e14D50\u003c\/strong\u003e is critical because the assembly's metallurgy and dimensions are matched precisely to your furnace's heat load and airflow path. Generic replacements risk poor sealing, premature stress cracking, and reduced efficiency. The factory part guarantees correct fit, proper heat transfer, and full compatibility with your Lennox equipment.\u003c\/p\u003e","brand":"Lennox","offers":[{"title":"Default Title","offer_id":63081065546099,"sku":"LNX-14D50","price":399.95,"currency_code":"USD","in_stock":true}],"url":"https:\/\/nationalhvacparts.com\/products\/oem-lennox-heat-exchanger-assembly-14d50","provider":"National HVAC Parts","version":"1.0","type":"link"}