Changes

* Entry firefighting is a highly specialized form of firefighting involving the actual direct entry of firefighters into a fire with a very high level of heat.  It is not the same thing as proximity firefighting, although it is used in many of the same situations (such as flammable liquid fires).

* Entry firefighting is a highly specialized form of firefighting involving the actual direct entry of firefighters into a fire with a very high level of heat.  It is not the same thing as proximity firefighting, although it is used in many of the same situations (such as flammable liquid fires).

==Types of vehicles==

==Vehicles==

The "fire truck" and "fire engine" are two different vehicles, and the terms should not be used interchangeably.  In general, fire engines are outfitted to pump [[water]] at a fire.  Trucks do not pump water and are outfitted with [[ladder]]s and other equipment for use in [[ventilation]] of the building, rescue, and related activity.  In many jurisdictions it is common to have a ladder (or truck) company and an engine company stationed together in the same firehouse, as was depicted in the movie ''Ladder 49''.

The "fire truck" and "fire engine" are two different vehicles, and the terms should not be used interchangeably.  In general, fire engines are outfitted to pump [[water]] at a fire.  Trucks do not pump water and are outfitted with [[ladder]]s and other equipment for use in [[ventilation]] of the building, rescue, and related activity.  In many jurisdictions it is common to have a ladder (or truck) company and an engine company stationed together in the same firehouse, as was depicted in the movie ''Ladder 49''.

==Physics of fire==

==Physics of fire==

The fire triangle is a term which refers to the three elements necessary for a fire to burn: [[oxygen]], [[fuel]], and a source of [[heat]].  Remove any one of the three and the fire can no longer burn.  All firefighting tactics are based on removing one or more of the three elements in the fire triangle.

The "fire triangle" is a term which refers to the three elements necessary for a fire to burn: [[oxygen]], [[fuel]], and a source of [[heat]].  Remove any one of the three and the fire can no longer burn.  All firefighting tactics are based on removing one or more of the three elements in the fire triangle.

Types of heat transfer: Radiant, conductive, and convective.  Conductive heat is transferred by direct contact with the heat source.  Convective heat is transferred by hot gases from the heat source, often to objects above the heat source since heat rises.  Radiant heat is transferred through radiation of the heat not involving hot gases.  To illustrate, when you hold a metal spoon in a cup of hot coffee and feel the spoon get hot, this is conductive heat.  When you stand near a campfire and feel the heat on your face, this is radiant heat.  When hot steam is rising from a boiling pot of water, this is convective heat.

Types of heat transfer: Radiant, conductive, and convective.  Conductive heat is transferred by direct contact with the heat source.  Convective heat is transferred by hot gases from the heat source, often to objects above the heat source since heat rises.  Radiant heat is transferred through radiation of the heat not involving hot gases.  To illustrate, when you hold a metal spoon in a cup of hot coffee and feel the spoon get hot, this is conductive heat.  When you stand near a campfire and feel the heat on your face, this is radiant heat.  When hot steam is rising from a boiling pot of water, this is convective heat.

==Safety==

==Safety==

* Building standards, firefighting equipment standards, and other standards are set by the [[National Fire Protection Association]], or NFPA.

* In the [[United States of America]], building standards, firefighting equipment standards, and other standards are set by the [[National Fire Protection Association]], or NFPA.

* "Two in, two out" refers to the rule that firefighters never enter a building or other IDLH situation alone but go in as a pair.  Two go in and two come out; also, the two in can refer to the two who enter the building while a backup team of two remains outside the building ready to enter if needed.

* "Two in, two out" refers to the rule that firefighters never enter a building or other IDLH situation alone but go in as a pair.  Two go in and two come out; also, the two in can refer to the two who enter the building while a backup team of two remains outside the building ready to enter if needed.

[[category:fire fighting]]

[[category:fire fighting]]