I knew of a few ways to heat water past 212' F. First and foremost, water will boil at a higher temperature when you dissolve something in it, such as salt. The more stuff you dissolve in it, the higher the boiling point. This didn't seem like the answer, though. After all, your RISE Super Foam directions specified hot water, not hot saltwater. I'd also run across something called superheating.
Water can only boil when it can form bubbles.
Bubbles, in turn, can only form when they have something like a piece of dust or a sharp ledge to form on. My initial excitement at the notion of shaving with water that was 482' F was quickly dispelled when I realized the dangers involved. When you superheat water, a phenomenon called bumping can occur, where bubbles, if given an opportunity to form in water at such high temperature, will do so violently, splattering the water out of the container. As soon as I put my hands in the superheated water to splash some on my whiskers, bubbles would form, and the superhot water would erupt out of its container, making quite a mess. No, I realized, this would simply not do.