Boiler MAWP Explained: Why Operating Pressure Should Stay Below the Limit

What’s the difference between boiler operating pressure and MAWP? In this Weekly Boiler Tip from WARE, we break down the difference between maximum allowable working pressure (MAWP) and the actual operating pressure of a boiler. This is a key concept for boiler operators, technicians, and plant teams who want to understand boiler safety, relief valve settings, and why you should never confuse design pressure with normal operating pressure. Safety notice: Always consult experts for complex repairs. Weekly Boiler Tips are compiled by the knowledgeable and remarkably prolific content creators at WARE, a family owned, third-generation, 69-year-old commercial and industrial boiler rental and service firm bas