{"product_id":"oem-lennox-aluminum-heat-exchanger-assembly-19a75","title":"OEM Lennox Aluminum Heat Exchanger Assembly — 19A75","description":"\u003cp\u003eThe genuine OEM Lennox \u003cstrong\u003e19A75\u003c\/strong\u003e aluminum heat exchanger assembly is the primary heat-transfer component of your Lennox furnace, moving combustion heat into the supply airstream while keeping flue gases fully contained. Its aluminized construction resists thermal fatigue and corrosion, and it is built to the precise tube pattern and mounting specifications of the Lennox platforms it fits.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eCommon failure symptoms\u003c\/strong\u003e include cracks or perforations in the exchanger walls, surface rust or oxidation, an unstable or distorted burner flame, soot deposits, strange odors during operation, and recurring high-limit or safety lockouts. Because a breached exchanger can release carbon monoxide, any sign of damage warrants prompt replacement.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhy OEM matters:\u003c\/strong\u003e the genuine Lennox \u003cstrong\u003e19A75\u003c\/strong\u003e is manufactured and certified to the original safety, pressure, and efficiency standards for your furnace. Generic substitutes often differ in alloy, dimensions, and durability, risking poor fit, lost efficiency, early failure, and warranty issues. Installing the correct OEM assembly restores rated heating performance and safe operation.\u003c\/p\u003e","brand":"Lennox","offers":[{"title":"Default Title","offer_id":63081075081587,"sku":"LNX-19A75","price":399.95,"currency_code":"USD","in_stock":true}],"url":"https:\/\/nationalhvacparts.com\/products\/oem-lennox-aluminum-heat-exchanger-assembly-19a75","provider":"National HVAC Parts","version":"1.0","type":"link"}