OEM Lennox Heat Exchanger Assembly — 13X47

The Lennox 13X47 is a genuine OEM heat exchanger assembly (factory reference 612224-06) built for Lennox gas furnaces. The heat exchanger captures heat from the furnace's burners and passes it to the circulating air, all while containing combustion gases behind a sealed metal barrier so carbon monoxide never mixes with the air you breathe. Manufactured to Lennox specifications, it restores the exact heat transfer performance and airflow your furnace was designed to deliver.

Common failure symptoms: Telltale signs of a failing exchanger include visible cracking or corrosion, a burner flame that flutters or shifts when the blower kicks on, soot accumulation, banging or rumbling sounds during startup, and repeated shutdowns triggered by the safety limit. Any activation of a carbon monoxide detector is a critical alarm that warrants immediate inspection and replacement.

Why OEM matters: The heat exchanger is a life-safety component, making the genuine Lennox 13X47 the only responsible choice. OEM manufacturing ensures the precise metallurgy, dimensional tolerances, and sealing integrity required for a leak-free fit and rated efficiency. Aftermarket parts may not seal correctly, risking dangerous combustion leaks — protect your equipment and your family with the authentic Lennox assembly.