What type of fire should be extinguished with water?

The appropriate type of fire to extinguish with water is Class "A" fires. Class "A" fires involve ordinary combustible materials such as wood, paper, textiles, and some plastics. Water is effective on these types of fires because it cools the burning material and eliminates the heat component of the fire triangle (heat, fuel, and oxygen), thus extinguishing the flames.

Other classes of fires involve different materials that may react adversely to water. For example, Class "B" fires involve flammable liquids and gases, which can spread the fire instead of extinguishing it if water is applied. Class "C" fires involve energized electrical equipment, where using water poses the risk of electric shock or further equipment damage. Therefore, water is not suitable for extinguishing fires in these categories. Understanding these specifics helps ensure safety and effective fire response strategies.