how long does it take for a small flame to turn into a major fire?

A small flame can turn into a major fire in less than 30 seconds, especially if conditions like fuel, oxygen, and heat are optimal. In as little as 30 seconds, the initial flame spreads, heat builds up, and smoke begins to fill the surrounding area, making the fire rapidly grow. The critical point known as flashover, when everything in the room ignites almost simultaneously, can occur within a few minutes, typically 3 to 5 minutes after ignition. This progression makes early detection and quick action vital to prevent a small flame from becoming an uncontrollable blaze.