This is a simple, DIY propane furnace you can easily build at home using a peach can, or whatever. Simply line the inside using Kaowool. Knock a hole in the side for your Torch. And you're good. Its extremely easy. And it gets very hot. I use this set up to take with me mining and melt my small fines into ingots. For scrap silver. And to make different things for jewelry making.
The Graphite Molds are made by my friend and Neighbor Paul, aka Canvasman34. You can buy his graphite molds dirt cheap on Ebay. Just look up Canvasman34 as the user name.
You can link to his youtube videos in the upper left hand corner of this video.
The pickle solution I use, is Sparex brand. This is what gets rid of the discoloration on your silver after its been melted. Quench your piece in your pickle and let sit for a few. Then wipe it clean. Sometimes, a little steel wool helps bring out the shine. Sparex works best warm. So I use a crock pot.
A pickle solution can eat away at your clothes. So try not to get it on you. And use only in a ceramic bowl. Not Metal. As mentioned before, crock pot is what I use, and it works the best.
Have fun. Be careful. Once your done with your Graphite Mold, put it some place out of reach and avoid getting burnt. The burns hurt. Believe me.