{"product_id":"oem-lennox-heat-exchanger-assembly-14d59","title":"OEM Lennox Heat Exchanger Assembly — 14D59","description":"\u003cp\u003eThe genuine OEM Lennox \u003cstrong\u003e14D59\u003c\/strong\u003e heat exchanger assembly (factory references 612998-10 and 610280-01) is the heart of your Lennox gas furnace's heating cycle. It absorbs heat from the burners and passes it to the air stream while keeping combustion gases fully isolated from the air circulated through your home. Its integrity is critical to both efficient heating and safe furnace operation.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eCommon failure symptoms:\u003c\/strong\u003e cracks, rust, or scaling on the metal, an unstable or discolored burner flame, popping and booming sounds during ignition, soot deposits, strange odors, or a tripped carbon monoxide alarm. Any evidence of a breach means the exchanger should be replaced immediately.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhy OEM matters:\u003c\/strong\u003e the \u003cstrong\u003e14D59\u003c\/strong\u003e is built to the precise alloy, tolerances, and thermal ratings your Lennox furnace was designed around. Non-OEM replacements can distort airflow, weaken seals, and shorten service life. Choosing the correct factory assembly ensures a proper fit, restored efficiency, and continued safe performance.\u003c\/p\u003e","brand":"Lennox","offers":[{"title":"Default Title","offer_id":63081065382259,"sku":"LNX-14D59","price":399.95,"currency_code":"USD","in_stock":true}],"url":"https:\/\/nationalhvacparts.com\/products\/oem-lennox-heat-exchanger-assembly-14d59","provider":"National HVAC Parts","version":"1.0","type":"link"}