Thanks so much for your input, makes perfect sense. I guess it's just about getting a feel for it and figureing it out that way.Knowing nothing about that particular burner, I'd say a quarter turn over is medium-low and three-quarters over is medium-high, using the idea that 1 is low, 7 is medium, and 14 is high. That'd mean 3-4 is medium-low and somewhere around 10-11 is medium-high.
From there, it's just getting to know it. For example, medium on my stove, it runs a little cold, so it's a bit past the halfway point.