If a pilot flame (like a match or ember) is already present, ignition can occur at much lower temperatures, generally between . 🔥 Key Ignition Milestones
Free water begins to evaporate. The wood "dries" before it can burn.
The wood begins to chemically break down (pyrolysis), releasing non-combustible gases like CO₂.
A dry tree (wood) typically requires a surface temperature of at least to ignite spontaneously without an external spark or flame.
Spontaneous combustion becomes likely if oxygen is present and the heat is sustained. 🕒 The "Time" Factor
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