Conflagration

A conflagration is a large and destructive fire that threatens human life, animal life, health, and/or property. It may also be described as a blaze or simply a (large) fire. A conflagration can begin accidentally, be naturally caused (wildfire), or intentionally created (arson). Arson can be for fraud, murder, sabotage or diversion, or due to a person's pyromania. A firestorm can form as a consequence of a very large fire, in which the central column of rising heated air induces strong inward winds, which supply oxygen to the fire. Conflagrations can cause casualties including deaths or injuries from burns, trauma due to collapse of structures and attempts to escape, and smoke inhalation.

Firefighting is the practice of attempting to extinguish a conflagration, protect life and property, and minimize damage and injury. One of the goals of fire prevention is to avoid conflagrations. When a conflagration is extinguished, there is often a fire investigation to determine the cause of the fire.

During a conflagration a significant movement of air and combustion products occurs. Hot gaseous products of combustion move upward, causing the influx of more dense cold air to the combustion zone. Sometimes, the influx is so intense that the fire grows into a firestorm.
       Inside a building, the intensity of gas exchange depends on the size and location of openings in walls and floors, the ceiling height, and the amount and characteristics of the combustible materials.

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