The Trane EXC01855 Heat Exchanger is a replacement component designed for compatible Trane HVAC heating equipment. It transfers heat from the heating process to the circulating air or another designated medium without allowing the two streams to mix. This process helps deliver consistent warmth and supports efficient system operation. Commonly used in compatible furnaces and heating s... https://www.partshnc.com/trane-exc01855-heat-exchanger