Casting From Aluminum Cans

Ive been looking at youtube videos all day of people making homemade furnaces and casting aluminum into cool shapes and sizes. But, im new and never casted anything before. I have spent several hours researching the safety and the steps to melting down aluminum, but have come short as to how to make the furnace. Its not a big job, just melting down aluminum at small quantities at a time.

I was looking at cast steel molds on ebay and stuff, Ive seen like corn bread molds and christmas cookie molds that would seem to work great with aluminum.. does it work on those?



Thanks in advance.