{"product_id":"oem-lennox-heat-exchanger-assembly-28w30","title":"OEM Lennox Heat Exchanger Assembly — 28W30","description":"\u003cp\u003eThe genuine OEM Lennox \u003cstrong\u003e28W30\u003c\/strong\u003e heat exchanger assembly is the primary heat-transfer component in your Lennox gas furnace. It captures the heat produced by combustion and passes it to the blower-driven air stream, all while containing exhaust gases within its sealed passages. Manufactured to Lennox's exact specifications, the \u003cstrong\u003e28W30\u003c\/strong\u003e ensures correct airflow, rated efficiency, and safe separation of combustion byproducts from conditioned air.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eCommon failure symptoms:\u003c\/strong\u003e Cracks, rust, or scaling on the exchanger, a rolling or yellow burner flame, soot accumulation, unusual smells, or carbon monoxide detector activation all point to a failing unit. You might also see diminished heat output or repeated safety-limit shutdowns. Any sign of a breach in the heat exchanger calls for immediate replacement.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhy OEM matters:\u003c\/strong\u003e Non-OEM heat exchangers frequently miss the precise material grade and weld tolerances Lennox engineers into each unit, leading to premature cracking and potential safety issues. The OEM \u003cstrong\u003e28W30\u003c\/strong\u003e guarantees a factory-perfect fit, protects your warranty, and returns your furnace to its designed performance and safety standards.\u003c\/p\u003e","brand":"Lennox","offers":[{"title":"Default Title","offer_id":63081068102003,"sku":"LNX-28W30","price":399.95,"currency_code":"USD","in_stock":true}],"url":"https:\/\/nationalhvacparts.com\/products\/oem-lennox-heat-exchanger-assembly-28w30","provider":"National HVAC Parts","version":"1.0","type":"link"}