using my wife stove (LPG/LNG).
put raw aluminum at crucible, put at stove.
put can (milk can) sorounding the crucible.
can wrapped with special fiber called ceramiko de fibraiko..
this fiber is so powerfull to isolate the hot.
turn on the stove, put cap, dont close the cap, let several hot air out ( if all excape close it will explode !!!)
Right: stryrofoam put inside sand
