Removing tank dent with dry ice

[rock_rebel]

After my accident I'm left with a small dent on the right side of my tank which is about the size of a quarter, maybe a little smaller. The dent hasn't creased so is it possible to remove a dent of this size with a heat gun and dry ice?

[Big Rich]

I've heard of plenty of people doing it, but have never tried it myself. As long as you don't explode the tank or melt the paint, what could it hurt?