Steam pressure in a properly installed and balanced system, while very important, shouldn’t be much of a big deal. But now-a-days, with all the alterations most steam systems have suffered through, it can be a very big deal. Which is why we offer a Vaporstat with every boiler. Your boiler comes standard with a Pressuretrol, a safety device used to limit the system pressure, and the Vaporstat is just a more finely tuned version of that. It lets us keep the pressure where we want it, as well as adding redundancy to a very important safety device. I know it doesn’t sound intuitive, but the lower the steam pressure, the faster the steam moves, and the more efficient it operates (within limits, of course). Thus, our normal goal is for very low pressure. The Vaporstat is can be a big help in achieving that goal.