Bard 171-121 - Heat Exchanger for C1

Bard part number 171-121 is an OEM heat exchanger used in Bard wall mounted gas heat equipment (often listed for C1 models) to transfer heat safely and efficiently into the airstream while keeping combustion gases sealed from the supply air. If your unit is showing signs of exchanger failure such as reduced heat output, nuisance safety shutdowns, or visible corrosion and cracks, replacing the heat exchanger with the correct Bard 171-121 assembly helps restore proper heating performance and maintains factory fit for the burner and flue components. Because heat exchanger designs vary by furnace size and cabinet configuration, confirm the full model and serial of your Bard unit before ordering to ensure the correct match.

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