How To Melt Aluminum With A Hole In The Ground

I've been interested to try this design for use as a survivalist foundry for quite some time now. The name of this type of fire pit is a Dakota Fire Hole, and I thought with a little extra air flow provided by a fan it might have the potential for some real heat.

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Check out my latest video: "How To View Invisible Air Currents With Lasers"
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