{"product_id":"oem-lennox-heat-exchanger-assembly-14d69","title":"OEM Lennox Heat Exchanger Assembly — 14D69","description":"\u003cp\u003eThe genuine OEM Lennox \u003cstrong\u003e14D69\u003c\/strong\u003e heat exchanger assembly (cross-references 612998-20 and 610280-09) is the heart of your gas furnace's heating cycle. It absorbs heat from the combustion process and transfers it to the air moving across it, all while containing flue gases and preventing them from mixing with the air distributed through your home.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eCommon failure symptoms:\u003c\/strong\u003e cracks, corrosion, or rust spots on the exchanger; a burner flame that flutters when the blower engages; soot accumulation; strange smells during operation; or carbon monoxide detector activation. Decades of expansion and contraction cause metal fatigue, and once the exchanger develops a breach it must be replaced to keep the system safe.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhy OEM matters:\u003c\/strong\u003e The 14D69 is manufactured to Lennox's precise metallurgical and dimensional standards for a leak-tight combustion seal and correct airflow geometry. Generic replacements risk poor fit, reduced efficiency, and warranty loss. Installing the authentic OEM assembly restores your furnace's rated performance and the safety protection Lennox engineered into your equipment.\u003c\/p\u003e","brand":"Lennox","offers":[{"title":"Default Title","offer_id":63081067250035,"sku":"LNX-14D69","price":399.95,"currency_code":"USD","in_stock":true}],"url":"https:\/\/nationalhvacparts.com\/products\/oem-lennox-heat-exchanger-assembly-14d69","provider":"National HVAC Parts","version":"1.0","type":"link"}