OEM Lennox Heat Exchanger — 60G78

The genuine OEM Lennox 60G78 heat exchanger transfers heat from the burner combustion process into the air stream your blower pushes through the home, all while containing and venting flue gases safely away from the conditioned air. Built to exact Lennox tolerances, it restores full heating output, efficiency, and safe furnace operation.

Watch for warning signs that a heat exchanger needs replacement: cracks, rust or scaling on the metal, a burner flame that flutters or changes color when the blower runs, soot accumulation, strange smells, or a tripped carbon monoxide alarm. Since a compromised heat exchanger can leak combustion byproducts into your living space, this is a safety-first repair that should use only the correct OEM component.

Installing the OEM Lennox 60G78 ensures the precise steel gauge, weld pattern, and dimensions your furnace was engineered to use. Generic replacements frequently vary in fit and durability, risking poor sealing, reduced lifespan, and loss of warranty coverage. Genuine Lennox parts keep your system performing and your family protected.