{"product_id":"oem-lennox-heat-exchanger-assembly-33m62","title":"OEM Lennox Heat Exchanger Assembly — 33M62","description":"\u003cp\u003eThe genuine OEM Lennox \u003cstrong\u003e33M62\u003c\/strong\u003e (interchange LB-94782R) heat exchanger assembly is the primary combustion heat-transfer component in your Lennox gas furnace. It captures heat generated by the burners and delivers it to the air flowing through your ductwork, all while keeping exhaust gases sealed away from the air you breathe. Manufactured to Lennox factory specifications, it maintains the correct temperature rise and efficiency your furnace was engineered to achieve.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eCommon failure symptoms:\u003c\/strong\u003e A deteriorating heat exchanger frequently reveals itself through a wavering or discolored burner flame, rust and corrosion on the metal, cracks or holes, soot accumulation, unusual odors, and repeated tripping of the high-limit or rollout switches. Since cracks can allow carbon monoxide to reach the airstream, a failing exchanger is a safety concern that warrants immediate replacement.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhy OEM matters:\u003c\/strong\u003e As a combustion-sealed, safety-critical part, the heat exchanger must match the original in dimensions, metal gauge, and weld integrity. The genuine Lennox \u003cstrong\u003e33M62\u003c\/strong\u003e guarantees a precise fit and proper seal that aftermarket parts cannot reliably provide, protecting both performance and warranty. Choose OEM for a safe, lasting repair.\u003c\/p\u003e","brand":"Lennox","offers":[{"title":"Default Title","offer_id":63081064300915,"sku":"LNX-33M62","price":399.95,"currency_code":"USD","in_stock":true}],"url":"https:\/\/nationalhvacparts.com\/products\/oem-lennox-heat-exchanger-assembly-33m62","provider":"National HVAC Parts","version":"1.0","type":"link"}