Explains how to make gas jet ejector burners for a forge, a hand torch for metal arts and a crucible furnace for metals and more. It is a do-it-yourselfer's dream book, showing beginners how to make highly efficient gas burners inexpensively. These burners use simple gas accelerators as their central operating principle. All that is needed is a $2 MIG tip and some plumbing parts. This eliminates the need for a blower to supply combustion air, allowing the burners to be built in any size. Burners are featured, which are small enough to be used for a jewelry torch or large enough to heat any ceramic kiln. Because these burners are both powerful and portable, they can be combined with low cost space age insulating materials and common containers to build light compact heating equipment.