What does the term ‘stack temperature’ refer to?

Stack temperature refers to the temperature of the flue gases as they exit the system. This measurement is important because it indicates how efficiently the burner is operating. When the stack temperature is lower than optimal, it suggests that a portion of the heat generated by the burning fuel is being lost to the environment instead of being utilized for heating. High stack temperatures can signal issues such as incomplete combustion or inadequate heat exchange.

Monitoring stack temperature is crucial for several reasons, including ensuring compliance with safety and environmental standards, optimizing fuel usage, and maintaining equipment efficiency. By keeping the stack temperature within a specified range, technicians can ensure that the burner is functioning properly and effectively converting fuel into usable heat while minimizing waste.