{"product_id":"oem-lennox-heat-exchanger-assembly-10a53","title":"OEM Lennox Heat Exchanger Assembly — 10A53","description":"\u003cp\u003eThe genuine OEM Lennox \u003cstrong\u003e10A53\u003c\/strong\u003e heat exchanger assembly — also identified by factory numbers 605996-75 and 612224-12 — is the primary heat-transfer component of your furnace, carrying heat from the burners into your home's airflow while keeping combustion gases isolated from the conditioned air. It is built to Lennox specifications for an exact fit in compatible furnace models.\u003c\/p\u003e\u003cp\u003eWatch for these failure symptoms: visible cracking or rust on the exchanger, a burner flame that flutters or changes shape when the blower engages, soot accumulation, unusual odors, or a furnace that repeatedly trips its high-limit switch. A cracked heat exchanger can leak carbon monoxide, so it should be addressed immediately.\u003c\/p\u003e\u003cp\u003eFor a combustion part, OEM is not optional. The Lennox \u003cstrong\u003e10A53\u003c\/strong\u003e is formed from the correct alloy and gauge to endure thermal cycling and to seal tightly to the burner box. Generic replacements risk premature failure and safety issues — the genuine assembly preserves your system's integrity, efficiency, and warranty.\u003c\/p\u003e","brand":"Lennox","offers":[{"title":"Default Title","offer_id":63081068265843,"sku":"LNX-10A53","price":399.95,"currency_code":"USD","in_stock":true}],"url":"https:\/\/nationalhvacparts.com\/products\/oem-lennox-heat-exchanger-assembly-10a53","provider":"National HVAC Parts","version":"1.0","type":"link"}