{"product_id":"oem-lennox-heat-exchanger-assembly-10a54","title":"OEM Lennox Heat Exchanger Assembly — 10A54","description":"\u003cp\u003eThe genuine OEM Lennox \u003cstrong\u003e10A54\u003c\/strong\u003e heat exchanger assembly (factory references 605996-76 \/ 612224-03) is the heart of your Lennox gas furnace's heating cycle. It captures the heat produced by the burners and transfers it to the air moving across it, all while keeping combustion gases sealed away from your home's indoor air.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eCommon failure symptoms:\u003c\/strong\u003e Watch for a wavering or discolored burner flame, cracks or rust along the exchanger tubes, popping and pinging sounds as the metal expands and contracts, soot buildup, or the furnace tripping its limit switch and short-cycling. Because a breached heat exchanger can release carbon monoxide, prompt replacement protects both comfort and safety.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhy OEM matters:\u003c\/strong\u003e The \u003cstrong\u003e10A54\u003c\/strong\u003e is manufactured to Lennox's exact metallurgy and dimensional tolerances so it seats perfectly against the burner assembly and flue collar. Non-OEM alternatives can compromise combustion sealing, cut efficiency, and void your equipment warranty. Installing the authentic Lennox part restores factory-rated performance and safe, reliable heating. Professional installation is strongly recommended.\u003c\/p\u003e","brand":"Lennox","offers":[{"title":"Default Title","offer_id":63081070494067,"sku":"LNX-10A54","price":399.95,"currency_code":"USD","in_stock":true}],"url":"https:\/\/nationalhvacparts.com\/products\/oem-lennox-heat-exchanger-assembly-10a54","provider":"National HVAC Parts","version":"1.0","type":"link"}