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• S171-307 OBSOLETE

• HEAT EXCHANGER 90K - SERVICE

Bard S171-307 is an OEM heat exchanger assembly built for 90,000 BTU gas heat sections that use a 4 burner configuration, helping restore safe, consistent heat transfer and proper flue gas routing in compatible Bard wall mounted gas/electric units. If your unit has a cracked or leaking exchanger, replacing it with the correct Bard assembly is key for dependable heating performance and proper burner operation. Because heat exchanger fit is model-specific, confirm your full unit model and serial number before ordering to ensure the S171-307 matches your exact furnace configuration.