Forges

These are some ideas of forges that I have based my forge on. These are all open forges, they do not have doors on the front or the back. In my mind if the forge had a closed rear and a door on the front, the heat would be more contained and the temperature would rise faster. Faster rise in temperature would mean less gas being used.

http://www.cyphertext.net/~gfish/forge.html

http://www.zoellerforge.com/simplegasforge.html

http://www.chileforge.com/forges_habanero_details.html