Are automatic air vents mandatory on all boilers?

Automatic air vents are not mandatory on all boilers. While they can be beneficial for removing trapped air from the system and promoting efficient operation, their installation is not universally required.

In practice, the necessity for automatic air vents can depend on various factors, including the type of boiler system, the design of the installation, and the specific conditions under which the boiler operates. For instance, systems that are designed to be sealed or that utilize other methods to manage air may not require automatic vents at all.

Furthermore, certain applications may benefit from using them, but no blanket rule dictates their use across all boiler types. Additionally, guidelines and regulations can vary by region, so local building codes may dictate requirements on a case-by-case basis rather than a one-size-fits-all mandate. Hence, understanding the specific system design and adherence to local codes is crucial in determining whether automatic air vents are necessary.