Oxygen ( From the Air/atmosphere) around the fire.
the air
That is, what they already do. No kind of fire can burn without oxygen!
An oxygen-fed fire is a fire that is fueled by an increased supply of oxygen, resulting in a more intense and faster-burning fire. It can be more difficult to control and extinguish due to the higher oxygen levels supporting combustion.
Fire requires three things: heat, fuel, and oxygen. If you take one of them away, then the fire will stop. By wrapping a heavy blanket around a burning object, it blocks oxygen in the air from getting to the fire and the fire goes out.
Sand helps to smother a fire by cutting off the oxygen supply needed for combustion. When sand is poured onto a fire, it creates a barrier between the fuel and oxygen in the air, causing the fire to suffocate and eventually go out.
There was as much oxygen as there is outside today which meant the fire could spread much easier than without oxygen
Henry Aaron Isaacs has written: 'Our water supply (present and prospective) considered in relation to the protection of the city ofLondon from fire'
That the supply of oxygen for the fire
Control the fuel supply or oxygen supply to the fire.
Fire needs oxygen to continue burning. Water cuts of the supply of oxygen and hence the fire stops.
the air
No. Adding oxygen to a fire will make it burn faster and hotter. In fact, one of the ways of putting out a fire is to cut off the supply of oxygen.
That is, what they already do. No kind of fire can burn without oxygen!
An oxygen-fed fire is a fire that is fueled by an increased supply of oxygen, resulting in a more intense and faster-burning fire. It can be more difficult to control and extinguish due to the higher oxygen levels supporting combustion.
Fire requires three things: heat, fuel, and oxygen. If you take one of them away, then the fire will stop. By wrapping a heavy blanket around a burning object, it blocks oxygen in the air from getting to the fire and the fire goes out.
Blowing on a fire increases the supply of oxygen, which is necessary for combustion. More oxygen allows the fire to burn more efficiently and thus increase in intensity rapidly.
Fanning them brings in more oxygen. With more oxygen you get more fire.