Which fire stream pattern helps protect firefighters from radiant heat?

The wide-angle fog pattern is designed to create a protective barrier for firefighters against radiant heat. This pattern allows for the water to be dispersed in a fine mist, which increases the surface area of the water. As a result, when the water evaporates, it absorbs a significant amount of heat energy from the surrounding environment. This cooling effect helps to protect firefighters from the intense heat generated by a fire, making it safer for them to operate in close proximity to the heat source.

Additionally, the fog pattern can also obscure visibility, which can be beneficial in certain tactical situations, and it allows for a quicker response to temperature changes around the firefighters. Solid streams, while effective for penetrating flames and delivering large volumes of water, do not provide the same level of radiant heat protection. A direct hose line primarily focuses on directing water at the fire but may not offer the same protective qualities against radiant heat. An aerial stream, although useful for reaching high areas or for large-scale incidents, does not specifically utilize the evaporation cooling effect in the same way as a fog pattern does.