The heat is what causes the temperature of the fuel up to the point next to the fire place, the element of fire. When appropriate, each type of fuel, which will inevitably be caught fire.
The heat is what makes the temperature rise to ignition of fuel elements made of fire. Up properly Which each type of fuel will inevitably have an ignition point is not the same.
The heat also is what makes the temperature of the fuel up to fire point makes the elements of fire, occur properly. The fuel each kind shall be the fire point is different.