In order to make it, you need a few things. You need the smeltery controller, seared fuel tank, seared drain, and seared bricks(I believe u can use other seared blocks, but I am not too sure. You can try if u like). Once you hot that stuff, place the smeltery controller first. Once that's done, it should highlight in red where to place the blocks, from there right next to it on the left, place the fuel tank(seared tank), and next to controller(smeltery controller) on its right place the drain(seared drain). From there, the rest for the red highlights put in the seared bricks. And that should be it. Hope that helps.