Why is fire hot?

Why is fire hot?

Professor Gizmo (Amazing Science Presentations) gives expert video advice on: Why is fire hot?; What happens to my body when I burn myself?; If I had a big head, would I be really smart? and more...

Fire is hot because it is releasing a lot of stored energy. When that energy is released, it's not confined to anything, so the energy comes off very quickly. And when you have lots of energy released at the same time, it gives off lots of heat.