Bard 171-156 - WAG Heat Exchanger Assembly

The Bard 171-156 wag heat exchanger assembly is an OEM burner section component used in Bard wall mounted gas/electric (WAG series) units to transfer heat safely and efficiently from the combustion chamber into the supply airstream while keeping flue gases isolated. If your unit is showing signs of heat exchanger failure like loss of heat output, unusual burner rollout, or confirmed cracks during inspection, replacing the heat exchanger assembly with the correct Bard factory part helps restore proper heating performance and supports safe operation. Because heat exchanger applications vary by exact model and BTU size, match 171-156 to your unit model and serial number, and follow Bard service procedures for gaskets, seals, and combustion setup checks after installation.

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