What is the fire triangle?

The fire triangles or combustion triangles or ″fire diamond″ are simple models for understanding the necessary ingredients for most fires. The triangle illustrates the three elements a fire needs to ignite: heat, fuel, and an oxidizing agent (usually oxygen). read more

A simplified cousin to the fire tetrahedron, the fire triangle is a model for conveying the components of a fire. The fire triangle’s three sides illustrate the three elements of fire, which are heat, fuel and oxidization. The three elements must be combined in the right proportions for a fire to occur. read more

Oxygen, heat, and fuel are frequently referred to as the "fire triangle.". Add in the fourth element, the chemical reaction, and you actually have a fire "tetrahedron.". The important thing to remember is: take any of these four things away, and you will not have a fire or the fire will be extinguished. read more