What does "overhaul" mean in firefighting terminology?

In firefighting terminology, "overhaul" refers to the process of removing or checking for hidden heat and embers after the main body of the fire has been extinguished. This step is crucial because even after the visible flames are out, there can be smoldering materials that can reignite. Firefighters carefully search through the debris to ensure that all heat sources are identified and eliminated, which prevents re-ignition and ensures that the scene is safe.

The act of overhaul is a critical part of firefighting operations, as it involves meticulous examination of the burned area, often requiring the use of tools to dismantle materials and expose hidden areas where fire could still be present. This further verifies the fire's complete extinguishment, ensuring fire safety for both the responders and the public.