hey guys! Im looking to build my first gas forge and am wordering about a few things so here it goes: As of now, i am leaning toward building a forced air style burner and im not really sure what design to use (i dont own a welder which is why i am having trouble finding a design). Any ideas? Also (stupid question here), does the actual burning take place inside the burner or just outside the burner in the forge? Can i use pvc pipe for air intake or will it get enough heat to melt? and does anyone know where i can get some decent firebrick in the St.Paul/Minneapolis area?