I cut 2 torch holes into it. One on each side. I'll post a better pic for you. It's my first attempt so any feedback would be appreciated. I shaped the inside around 2 old strawberry jam jars with a small flat board taped to the bottom to make for a flat surface after it sets. I then took one of jars and formed refractory mix around it as to make an insert of sorts incase the flat area doesn't work very well. As of now I'm using a MAPP gas set up, but I have about 100 gallons of unused propane now from turning our fireplace back into a wood fireplace instead of gas. My plans so far are just to use the mini forge as a way of shaping tools and with some direction, melting down scrap silver and gold. Again, I'm a noob so don't beat me up too bad.