{"product_id":"oem-lennox-heat-exchanger-assembly-13x46","title":"OEM Lennox Heat Exchanger Assembly — 13X46","description":"\u003cp\u003eThe genuine OEM Lennox \u003cstrong\u003e13X46\u003c\/strong\u003e heat exchanger assembly (factory reference 612218-45) moves heat from the burner combustion chamber into the air that warms your home, all while keeping toxic flue gases sealed away from the conditioned air stream. It is engineered to the exact dimensions and specifications of your Lennox furnace for correct fit, airflow, and combustion performance.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eCommon failure symptoms:\u003c\/strong\u003e Look for cracks, rust, or corrosion on the exchanger, a flickering or distorted burner flame, soot deposits, odd smells during heating cycles, or a carbon monoxide alarm activation. Any of these indicates the exchanger has likely breached and needs immediate replacement for your family's safety.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhy OEM matters:\u003c\/strong\u003e Because the heat exchanger is safety-critical, the exact-fit OEM Lennox \u003cstrong\u003e13X46\u003c\/strong\u003e is the right choice. Off-brand alternatives can vary in steel thickness, weld integrity, and sizing, which can cause poor combustion, early failure, and warranty problems. This factory-built assembly returns your Lennox furnace to safe, efficient, rated operation.\u003c\/p\u003e","brand":"Lennox","offers":[{"title":"Default Title","offer_id":63081075966323,"sku":"LNX-13X46","price":399.95,"currency_code":"USD","in_stock":true}],"url":"https:\/\/nationalhvacparts.com\/products\/oem-lennox-heat-exchanger-assembly-13x46","provider":"National HVAC Parts","version":"1.0","type":"link"}