lol, i superheat steel bars for profit, except i mine half of all the coal needed if you really want to make a profit on anything, you need to do some resource gathering, otherwise you will lose money superheating 1k steel bars in 1 hour is impossible, believe me, i superheat 1k of steel bars at a time before selling, you have to constantly bank, its extremely annoying, boring and time consuming, to break boredom, i always play a game or two fist of guthix between every 100 or 200 bars, it's not efficient, but hey, its fun and you can buy some f.o.g. items and sell for profit