{"product_id":"oem-lennox-heat-exchanger-assembly-53l61","title":"OEM Lennox Heat Exchanger Assembly — 53L61","description":"\u003cp\u003eThe genuine OEM Lennox \u003cstrong\u003e53L61\u003c\/strong\u003e heat exchanger assembly is the heart of your Lennox gas furnace, transferring combustion heat to the circulating air stream while safely isolating flue gases from your home's air supply. Built to exact Lennox factory tolerances, it restores full heating output and efficiency to compatible furnace models.\u003c\/p\u003e\u003cp\u003eCommon indicators of heat exchanger failure include visible cracks or rust, soot accumulation, a yellow or wavering burner flame, popping and rattling noises during the heating cycle, and the presence of carbon monoxide. Any of these signs points to a unit that should be taken out of service and replaced without delay, since a breached exchanger poses a direct safety risk.\u003c\/p\u003e\u003cp\u003eSelecting the OEM \u003cstrong\u003e53L61\u003c\/strong\u003e ensures a precise fit and combustion characteristics matched to your Lennox equipment. Non-OEM alternatives can compromise airflow, sealing, and safety while jeopardizing your warranty. Genuine Lennox construction delivers the durability and peace of mind that aftermarket parts simply cannot guarantee.\u003c\/p\u003e","brand":"Lennox","offers":[{"title":"Default Title","offer_id":63081072296307,"sku":"LNX-53L61","price":399.95,"currency_code":"USD","in_stock":true}],"url":"https:\/\/nationalhvacparts.com\/products\/oem-lennox-heat-exchanger-assembly-53l61","provider":"National HVAC Parts","version":"1.0","type":"link"}