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171-103 OBSOLETE
- HEAT EXCHANGER FOR C105 & C120
The Bard 171-103 heat exchanger is an OEM replacement heating component used in Bard C105 and C120 wall mounted HVAC gas heat sections, built to restore safe, efficient heat transfer when an original exchanger is damaged, cracked, or leaking flue gases. This part is the core of the furnace heat path, so correct fit is critical for proper draft, burner performance, and reliable limit operation. Match the unit model and serial information to confirm compatibility before ordering, and plan on inspecting related gaskets, collector box connections, and limit controls during installation since heat exchanger service is often performed alongside those items.
Official replacement(s):
URHX3
- Replacement Heat Exch. 3-Sec.