{"product_id":"oem-lennox-heat-exchanger-assembly-73m13","title":"OEM Lennox Heat Exchanger Assembly — 73M13","description":"\u003cp\u003eThe genuine OEM Lennox \u003cstrong\u003e73M13\u003c\/strong\u003e heat exchanger assembly is the primary heat-transfer component in your Lennox gas furnace. It captures the heat produced by the burners and passes it into the air circulating through your home, all while sealing hazardous combustion gases away from that air. Its integrity is essential to both the comfort and the safety of your heating system.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eCommon failure symptoms\u003c\/strong\u003e include visible cracks, rust, or scaling on the exchanger, a flame that shifts or rolls out when the blower runs, soot buildup around the burners, odd smells during heating, and carbon monoxide detector activations. These indicators mean the exchanger should be replaced without delay.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhy OEM matters:\u003c\/strong\u003e The Lennox \u003cstrong\u003e73M13\u003c\/strong\u003e is manufactured to the exact dimensions, alloy grade, and thermal specifications of your furnace's original assembly. Non-OEM substitutes risk poor sealing, premature cracking, and reduced efficiency, and can void your equipment warranty. The factory OEM part guarantees correct fit, rated performance, and safe, reliable operation throughout every heating season.\u003c\/p\u003e","brand":"Lennox","offers":[{"title":"Default Title","offer_id":63081075474803,"sku":"LNX-73M13","price":399.95,"currency_code":"USD","in_stock":true}],"url":"https:\/\/nationalhvacparts.com\/products\/oem-lennox-heat-exchanger-assembly-73m13","provider":"National HVAC Parts","version":"1.0","type":"link"}