A Bryant furnace generally lasts between fifteen and twenty years when it receives consistent annual maintenance and operates under normal residential conditions. Routine upkeep—including changing the air blower filters regularly and keeping the venting clear—ensures the internal components do not overheat or strain prematurely. The primary component that dictates a furnace's ultimate lifespan is the heat exchanger, which is protected under extended warranty on higher-end models. If a system is neglected, operates with dirty filters, or experiences airflow restrictions, components like the inducer motor or igniter may fail early, eventually necessitating a full system replacement once the repair costs outweigh the value of aging equipment.
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