The cut-off plate is a component of which part of the furnace?

The cut-off plate is an integral component of the blower housing in a gas furnace. It serves an essential purpose by helping to control airflow and ensuring that the circulation of air within the system operates efficiently. When properly placed within the blower housing, the cut-off plate helps to direct the air that is drawn in and pushed out, optimizing the heating process by ensuring that heated air is effectively distributed throughout the space.

In context, the combustion chamber, exhaust vent, and heat exchanger perform different functions within the furnace system. The combustion chamber is where fuel is burned to produce heat, the exhaust vent is responsible for expelling combustion gases outside of the dwelling, and the heat exchanger transfers heat from the combustion process to the air that ultimately warms the living space. Each of these components is critical to the overall operation of the furnace, but the specific role of directing air flow is uniquely tied to the blower housing and its components, including the cut-off plate.