High output waste oil burner.

[glort]

Thought I'd put this up for those of you coming into winter that may be looking for some free heat or are into metal casting.
I gave my waste oil burner a fire up to try melting copper without a furnace.  Aluminium is no problem, can do that in seconds, you just have to dodge the flying molten metal as the thrust out of the burner is a bit high.

https://www.youtube.com/watch?v=bMmHOPlsSnQ&list=UUEfdKGemqGDvpn2hSuJl2Nw

[Thob]

Impressive!  Imagine what that thing could do with an insulated furnace and a crucible!

Even a stack of firebricks should work.