Be sure to have all the essentials on hand. When you pour into the ingot mold that too will become extremely hot. You need a place to dump your ingot out too. You need a container for your dross or sludge you skim off the top. Flux stir, flux again. Give yourself plenty of room. You also need a way to dump your ingot mold. I use a vice grips. I prefer the cast iron ingot molds. Be prepared and there is nothing to it. I agree with pipe and wheel weights start from cold. Each time.