{"product_id":"oem-lennox-heat-exchanger-assembly-13x45","title":"OEM Lennox Heat Exchanger Assembly — 13X45","description":"\u003cp\u003eThe genuine OEM Lennox \u003cstrong\u003e13X45\u003c\/strong\u003e heat exchanger assembly (factory reference 612218-07) is the heart of your Lennox gas furnace's heating cycle. It absorbs heat from the burner combustion and transfers it to the blower air stream, all while sealing the harmful flue gases away from your home's air. Manufactured to precise Lennox tolerances, the \u003cstrong\u003e13X45\u003c\/strong\u003e restores full, safe heat output and proper combustion venting.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eCommon symptoms of a failing heat exchanger\u003c\/strong\u003e include hairline cracks, rust or corrosion, a yellow or wavering burner flame, soot deposits, strange smells during operation, and rising carbon monoxide levels. Any crack compromises safety, making replacement the correct fix.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhy OEM matters:\u003c\/strong\u003e as a combustion-critical, life-safety component, the heat exchanger demands exact metallurgy, weld quality, and fit. The OEM \u003cstrong\u003e13X45\u003c\/strong\u003e is built to Lennox specifications so it seats perfectly against the burner assembly and collector box, keeps your furnace's certification intact, and delivers the durability aftermarket parts can't match. Choosing OEM protects your equipment warranty and your family's safety.\u003c\/p\u003e","brand":"Lennox","offers":[{"title":"Default Title","offer_id":63081073443187,"sku":"LNX-13X45","price":399.95,"currency_code":"USD","in_stock":true}],"url":"https:\/\/nationalhvacparts.com\/products\/oem-lennox-heat-exchanger-assembly-13x45","provider":"National HVAC Parts","version":"1.0","type":"link"}