fire triangle problem?

Question

as most know the fire triangle is composed of fuel heat and oxygen.
However it has been recently downsized due to the fact that it has the missing chain reaction however i feel that having them all next to one another signifies the chain reaction.
Does that make since?

it is not ignition it is heat

lauram5 your deffinatly getting best answer thanks for backing me up on heat i knew that too i am 14 now but will be a fire fighter when i am older, so good luck, and godspeed

Answer 1

I just wanted to say you are right, it is fuel, oxygen, and heat; not ignition. Ignition is one of the stages of fire not a component. Think of it this way: when you put water onto a fire, all you are really doing is taking away the heat, therefore breaking the triangle so the fire can no longer exist.
As for the question, they changed it so that it would include the stages of burning. I'm not sure if this is what they teach in school, but this is how fire fighters are taught now.

Answer 2

To account for the issues associated with chain reaction fires the fire triangle is now sometimes turned into a fire pyramid, with the chain reaction shown at the top of the pyramid and the three normal points of the triangle at the base.

This is a neat solution, as you still need air, fuel and ignition to get it going.

Answer 3

The triangle is fuel, oxygen and ignition.