Here's a tutorial on how to make a propane gas forge out of bits and pieces. It's not too hard, it just takes some time and some scrap steel. There are lots of ways to make a forge, this one suits my needs. It can be made with a single opening or a double opening for long pieces. The parts can be improvised, but note the bigger the forge cavity - the harder it will be to heat.
Feel free to use and develop the ideas. We accept no responsibility on the use of forges you make with this information. Please be careful as working with gas can be dangerous and possibly fatal. I accept no liability for any injury which may occur by you following these pictures. They are intended for your information.
For some information about using the forge and other notes - click here