{"product_id":"oem-lennox-heat-exchanger-assembly-28m84","title":"OEM Lennox Heat Exchanger Assembly — 28M84","description":"\u003cp\u003eThe genuine OEM Lennox \u003cstrong\u003e28M84\u003c\/strong\u003e heat exchanger assembly is a critical safety and performance component in your Lennox gas furnace. It transfers heat from the combustion process to the air moving through your home while keeping combustion gases fully sealed and separated from your breathing air. A properly functioning heat exchanger is essential for both comfort and safe operation.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eCommon failure symptoms\u003c\/strong\u003e include visible cracks or rust, a flickering or shifting burner flame, unusual odors, soot buildup, or a carbon monoxide detector alarm. A cracked heat exchanger can allow combustion gases to mix with your indoor air and should always be addressed immediately by a qualified technician.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhy OEM matters:\u003c\/strong\u003e The \u003cstrong\u003e28M84\u003c\/strong\u003e is engineered to Lennox's exact specifications for metal alloy, weld integrity, and airflow geometry. Aftermarket substitutes can compromise the seal between combustion and circulating air, reduce heating efficiency, and void your factory warranty. Choosing the genuine Lennox part ensures a precise fit and restores your furnace to rated safety and performance. Installation should be performed by a licensed HVAC professional.\u003c\/p\u003e","brand":"Lennox","offers":[{"title":"Default Title","offer_id":63081065677171,"sku":"LNX-28M84","price":399.95,"currency_code":"USD","in_stock":true}],"url":"https:\/\/nationalhvacparts.com\/products\/oem-lennox-heat-exchanger-assembly-28m84","provider":"National HVAC Parts","version":"1.0","type":"link"}