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  • S171-319 OBSOLETE

  • Heat Exchanger 125K Service

Bard part number S171-319 is an OEM 125K BTU heat exchanger assembly used in select Bard wall mounted gas electric units, providing the primary heat transfer surface that separates combustion gases from the supply air stream for safe, efficient heating. This replacement heat exchanger is built to Bard specifications for proper fit within the burner section and to maintain correct airflow and temperature rise when matched to the correct unit series. Before ordering, confirm your model and serial number and reference the unit parts list to ensure S171-319 is the specified 125K heat exchanger for your exact configuration.


Official replacement(s):