Wayne Goddard wrote a book,$50 Knife Shop in which he describes a one brick forge. You need a FIRE brick (different kind of brick). You can use a regular propane torch. The only problem is you are limited to a 4" blade. The first time I tried it I got the steel up to a high yellow, almost white. It didn't come out very good and my pal said yellow is TOO HOT, you burned out all the carbon. In any event it WORKS and it is a cheap fast way to see if you like forging your own blades.