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• S171-258 OBSOLETE

• 4 Burner Heat Exchanger

Bard part number S171-258 is an OEM 4 burner heat exchanger assembly used in Bard wall mounted gas/electric HVAC units to transfer heat safely and efficiently from the burner section into the supply air stream. Replacing a compromised heat exchanger helps restore proper furnace operation, maintains designed temperature rise, and supports safe combustion performance while keeping the unit matched to Bard factory specifications. Confirm application by model and serial number before ordering, since burner count and heat input vary by series and the correct exchanger must match the original configuration.