Trane EXC1321 Heat Exchanger

The Trane EXC1321 is a Core Heat Exchanger, used for maximum efficiency in Trane HVAC systems particularly suitable for furnaces or boilers. Despite the fact that it looks big and massive, one of its functions is to warm you up. The EXC1321 Heat Exchanger transfers heat through the combustion gases into the air or water that flows through your Trane system. In combustion in a furnace, hot gases actually find their way through the exchanger. Therefore the blower will switch on and circulate that air using a fan hence acting as an energy sponge before distributing that energy to other parts of your home. In boilers, however, the heated exchanger absorbs that extra heat energy so that they can use it to pump the heat to radiators.