Step 1: Materials
the wire is canthol or resistance wire... sometimes called nichrome... whatever the name i got it from a vape store on ebay
Step 2: Selection
What will you use it for?
How much power do you want to feed it?
PLEASE DO YOUR HOMEWORK AND PURCHASE YOUR MATERIALS CAREFULLY
Step 3: Modification of a Perfectly Good Fire Brick
i guess they have halve bricks available. your choice.
i used a concrete saw from work to make the cuts in the brick make sure the cuts are large enough for what you have in mind...
WARNING THIS IS AN ELECTRICAL CIRCUIT. YOU CAN SHORT IT OUT. WITH COOKING DEVICES LIKE POTS AND PANS... ANYTHING METALLIC.
with that said i cut my grooves deep and the wire never contacted anything while pressed safely inside
Step 4: Wire Wrap
Step 5: Assembly
i did the math and it drew 10 amps continuously so i just wired a high temp wire to it and plugged it in.
too much or two less wire can result in an overloaded circuit.
be sure you use a nut and bolt at your splice points... it will melt copper wire and refuse to work
Step 6: Enjoy
also will melt aluminum... don't just set a pop can on it to see what it will do...
i use a furnace made like this to melt aluminum for casting... and as a kiln...
just do your math right to avoid expensive power supplies.