I have been looking into making a forage Smelter so I can make some bars of copper and other metals I have, I feel having some copper as such will be a good investment in time. I was wondering if any one has ever made a charcoal forage Smelter from what i see on you tube with an air source they get super hot . I feel it is a safer choice as it is a slower process with charcoal (heating up) I also feel it might be more incognito , as all that you have is a vac blowing air which can even be done from a vac a distance away . A vac is a normal sound in the back round .
A propane tank sounds like a jet and that will be very noticed. I assume a touch of Cole could also be used .
Any thoughts