It has been taught that all hose streams can push fire. That is not accurate. Pressure is needed to create the push; therefore, it is stream choice and nozzle movement that impact whether or not fire can be pushed.

Additionally, there must be a flow path and oxygen available downstream of the fire in order to push fire. Effective cooling of the fire compartment always reduces the potential for moving the fire as the fire gases are cooled below the ignition temperature, contracting as they cool…


Check out our project pages/online training programs to learn more about this Tactical Consideration:

Effectiveness of Fire Service Positive Pressure Ventilation
https://ulfirefightersafety.org/resea...

Effectiveness of Fire Service Vertical Ventilation and Suppression Tactics
https://ulfirefightersafety.org/resea...

Impact of Ventilation on Fire Behavior in Legacy and Contemporary Residential Construction (Horizontal Ventilation)
https://ulfirefightersafety.org/resea...

Study of The Impact of Fire Attack Utilizing Interior and Exterior Streams On Firefighter Safety And Occupant Survival
https://ulfirefightersafety.org/resea...