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The genuine OEM Lennox 96W10 heat exchanger assembly, cross-referenced as 605731-17 and superseding 604904-24, is a factory-engineered heat-transfer component for your Lennox furnace. It moves combustion heat into the circulating air while keeping flue byproducts safely separated from your home's air supply. Built to precise Lennox tolerances, it ensures proper fit, correct heat transfer, and reliable long-term operation.
Heat exchanger components wear from constant thermal expansion and contraction. Symptoms that point to the 96W10 include visible cracking or corrosion, an erratic burner flame, soot accumulation, odd odors during heating, nuisance limit-switch trips, or carbon monoxide detection. Any sign of a breach warrants prompt replacement for safety.
Installing the OEM Lennox 96W10 is important because non-genuine parts often differ in metal gauge and dimensions, which can compromise efficiency, airflow, and safety. This factory replacement restores your Lennox furnace to its original design specification and supports continued warranty compliance.