What is the temperature of fire?

Different materials burn at different temperatures, so a log fire burning in a fireplace may only average about 600 degrees C, but a well-stoked wood fire can exceed 1,100 degrees C. The flame from an acetylene torch burns at about 2,200 degrees C.

Even different parts of the same flame can burn at different temperatures. The temperature of a single candle flame can vary from 800 to 1400 degrees C depending on where it is measured. The hottest flame is achieved by the combustion of a carbon compound called dicyanoacetylene, which burns in oxygen with a temperature of almost 5,000 degrees C.