The EXC0643 is a replacement Heat Exchanger Assembly for Trane brand systems
Need to replace a cracked heat exchanger? Try a new Trane EXC series. Is there a strange smell coming from your furnance? It could be a corroded or cracked heat exchanger. If you plan to install a new heat exchanger make sure you talk to a local licensed technician to ensure the best solution for your furnace.
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