{"product_id":"oem-lennox-stainless-steel-heat-exchanger-57w87","title":"OEM Lennox Stainless Steel Heat Exchanger — 57W87","description":"\u003cp\u003eThe genuine OEM Lennox \u003cstrong\u003e57W87\u003c\/strong\u003e stainless steel heat exchanger assembly is the central heat-transfer component of your Lennox gas furnace. It draws heat from the burners and delivers it to the circulating air while sealing off combustion exhaust. Precision-formed from stainless steel, it resists corrosion and thermal stress for dependable, long-term performance in demanding Lennox heating applications.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eCommon failure symptoms:\u003c\/strong\u003e Telltale signs of a failing exchanger include cracks, rust, or pinholes in the metal; a burner flame that flickers or shifts when the blower runs; burning or metallic odors; soot buildup; and recurring high-limit trips. Because a breach can leak carbon monoxide, prompt replacement is essential for safety.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhy OEM matters:\u003c\/strong\u003e Lennox builds its heat exchangers to exact tolerances, materials, and combustion standards. The OEM \u003cstrong\u003e57W87\u003c\/strong\u003e guarantees correct fit, proper airflow, safe clearances, and full compatibility with your furnace's controls — while protecting your warranty. Choose the factory-specified assembly your Lennox system was designed around for safe, efficient heat.\u003c\/p\u003e","brand":"Lennox","offers":[{"title":"Default Title","offer_id":63081068527987,"sku":"LNX-57W87","price":399.95,"currency_code":"USD","in_stock":true}],"url":"https:\/\/nationalhvacparts.com\/products\/oem-lennox-stainless-steel-heat-exchanger-57w87","provider":"National HVAC Parts","version":"1.0","type":"link"}