In this two-day class students will learn the principles of building an efficient gas forge and burner. Using an upcycled discarded Freon tank for the shell, students will build an efficient forge capable of forge welding. This unit will include an efficient venturi-style burner to run off propane. The forge shell will be lined and insulated with a mounting point for the burner. Students will learn the principles of design that govern building the burners as well as the forge itself. By the end of the weekend, students can expect to take home a forge that can be used for blacksmithing, bladesmithing, heat treating, or as a foundry for small-scale casting.