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NOTES

In summary, there are four main stages of fire growth:

1. Incipient- slow HRR growth.
2. Fire Growth - transition slow to fast HHR growth.
3. Full Room Involvement - high HRR, steady state.
4. Decay - reducing HRR.

Additionally there are a number of important events including:

1. Ignition - Heat, Fuel and Oxidizer come together.
2. Established Burning - 20Kw, likely to grow.
3. Flashover - Very high HHR growth.

Ventilation can impact the timing and/or actualization of these stages and events.