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you can buy certain types of coal just for like heating your house its not just used industrially but not to many people use it anymore the thing i dont understand is y the hell are they pouring copper?
There were no places in my area selling coal, so I could not buy it. I don't know of *anyone* in Indiana who heats their house with coal - if coal is still used to heat houses, it is very very rare.
My university burns coal to heat campus, and they were kind enough to give me a few boxes full of it. I don't know where to buy it, though. It's hard to get these days because it is only used industrially.
It is already hot enough to melt copper - that is what I'm pouring in the video. Aluminum melts much lower than copper. I started out melting aluminum before improving the furnace enough to reach copper's melting point.
No, I haven't sold any of the metal I've melted. I don't really have enough to make it worthwhile. I'll probably just melt it again and maybe try to cast something useful.
Yep, just air. We used a bathroom vent fan and some metal tubing to blow air into the bottom of the furnace. The fuel, coal, is sitting on a grate inside the bricks. This lets air blow through evenly.
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As for why we are pouring copper? Because we can.
U gotta love metal !