Pardon me, zeddd. I've pulled on a Volcano bag many times, and used all kinds of other vapes, and I don't think I've seen a temperature setting that high. 218C looks to be about 424F, is that right? I've always thought that a vape that heats bud higher than 390F (199C) will include toxins that we don't want.
I understand that each device will have different ways to use the heat source, so that might require some different temps, or there may be some British Imperial difference that is required by your Uncle Robert or somebody.