Which of the following is a common operating pressure for commercial hot water boilers?

Commercial hot water boilers typically operate at various pressures, but a common operating pressure is around 160 PSIG. This pressure level is often used to ensure sufficient heat transfer and efficiency while keeping safety measures in mind. Operating at this pressure allows the boiler to deliver heating effectively without compromising the design limitations and safety protocols associated with boiler systems.

Other pressures, while they may be used in specific applications or older systems, are not as prevalent for standard commercial hot water boilers. Operating at higher pressures, such as 200 PSIG or 250 PSIG, can lead to increased risks and require more advanced safety features, and thus are not considered common. Similarly, 100 PSIG, although lower, may not provide the necessary energy output for larger commercial heating needs. Therefore, 160 PSIG stands out as the standard for effective and safe operation in most commercial hot water boiler applications.