{"product_id":"oem-lennox-heat-exchanger-assembly-28j68","title":"OEM Lennox Heat Exchanger Assembly — 28J68","description":"\u003cp\u003eThe genuine OEM Lennox \u003cstrong\u003e28J68\u003c\/strong\u003e heat exchanger assembly moves heat from the combustion process into your home's circulating air while keeping exhaust gases sealed and safely vented to the flue. Burner flames heat the exchanger's passages, and the blower distributes air across its surfaces to deliver reliable warmth. A properly working heat exchanger is essential to both the efficiency and the safety of your Lennox furnace.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eCommon failure symptoms:\u003c\/strong\u003e Watch for cracks, rust, or corrosion on the metal, a wavering or yellow burner flame, soot buildup, odd odors, frequent short cycling, and tripped high-limit or flame-sensor controls. Activation of a carbon monoxide detector is a serious warning that the exchanger may be cracked and needs prompt replacement.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhy OEM matters:\u003c\/strong\u003e The \u003cstrong\u003e28J68\u003c\/strong\u003e is engineered to Lennox's precise alloy, dimensions, and thermal ratings for safe, durable performance. Aftermarket substitutes risk premature cracking, improper fit, and voided warranties. Choosing the factory-specified assembly restores rated efficiency and guarantees a correct, safe fit in your Lennox system.\u003c\/p\u003e","brand":"Lennox","offers":[{"title":"Default Title","offer_id":63081065054579,"sku":"LNX-28J68","price":399.95,"currency_code":"USD","in_stock":true}],"url":"https:\/\/nationalhvacparts.com\/products\/oem-lennox-heat-exchanger-assembly-28j68","provider":"National HVAC Parts","version":"1.0","type":"link"}