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• S171-256 OBSOLETE

• 3 Burner Heat Exchanger

Bard S171-256 is an OEM 3 burner heat exchanger assembly used in Bard wall-mounted gas/electric HVAC units to safely transfer heat from the burners into the supply airstream while keeping combustion gases sealed from indoor air. Replacing a worn or cracked heat exchanger is critical for reliable heating performance, proper draft through the inducer and collector box, and safe operation of the furnace section. As a genuine Bard part, S171-256 is built to match the original fit and airflow path inside the burner compartment, helping restore factory heating operation when the existing exchanger has corrosion, fatigue, or leak-related shutdowns.