Under which condition is a Pipefitter license required?

A Pipefitter license is typically required in the context of handling systems and installations based on specific parameters like BTU ratings, which are indicative of the heat or energy output of boilers, furnaces, or other heating systems. When it comes to a requirement of handling anything over 700,000 BTU, this threshold usually signifies a more complex and potentially hazardous operation due to the scale and pressure involved. Higher BTU outputs often relate to larger systems that require a deeper understanding of safety protocols, codes, and regulations specific to high-capacity gas or steam systems.

While other scenarios such as residential projects, commercial installations, and high-pressure steam projects are also regulated, they do not necessarily encompass the same level of complexity or safety concern that a high BTU limit does. The requirement for a license in the case of high BTU systems is primarily focused on ensuring that only qualified professionals are managing installations that pose higher risks to safety and compliance with industry standards.