Which component is essential for safe operation of a gas furnace during ignition sequence?

The draft inducer fan is crucial for the safe operation of a gas furnace during the ignition sequence because it is responsible for creating a proper draft that ensures combustion gases are vented outside while bringing fresh air into the combustion chamber. This process is vital not only for efficient burning of the gas but also for preventing the accumulation of harmful gases, such as carbon monoxide, which can pose serious health risks.

By ensuring that the combustion chamber is sufficiently well-ventilated, the draft inducer fan plays a key role in maintaining safety standards during the ignition of the burner. The fan activates at the start of the ignition sequence, preparing the system for safe and effective operation. Without this component functioning properly, there could be insufficient airflow, leading to incomplete combustion, a risk of backdraft, or the buildup of dangerous gases inside the home.