SLAG
chainmailleman
SLAG
Either would be good... I'm not looking for anything super permanent I'll be moving with in a year...
It's made out of regular masonry brick. Infact all of my solid fuel forges except for my first were made out of masonry brick. It doesn't last long but at 25 cents a brick it's cheap. The bricks are made of adobe clay and have no sulphur, as opposed to cinder block which contains almost a percent of sulphur, which causes "Red Short" if you smelt with concrete walls.
Charcoal is pretty dirty, you will know why we are called blacksmiths when you start using it.
Yeah I was gonna see about pricing some fireplace brick but if I can get away with using normal brick that would be good...
If you really want to get cheap, just a hole in the ground lined with large stones works really well.
I'm working on the tutorial right now, the pictures won't be available until monday or tuesday as I have to go down to Utah to build them and take pictures. There's 2 feet of snow in my backyard so it's out of the question here in Wyoming. I'll have a tutorial on charcoal making with a 55 gallon drum as well. At almost 2 bucks a pound for lump charcoal at the grocery store, it's well worth it.
You will need some form of directed air flow. Your mother's hair dryer is always the cheapest (but deadly when she finds out). I'm working on some ancient bag bellows but I lost my sheet of "pleather" that I was using when I moved back to the Rockies. I'll have a how-to on those within a month or so when I get access to materials. I had a really bad bellows made out of an old pair of jeans and it did work, but not enough to do anything besides aluminum casting.