What is the limit for a Master Class B license holder?

A Master Class B license holder in Minnesota is specifically authorized to install equipment with an input capacity of less than 1,000,000 BTU per hour. This designation allows for a significant amount of work within the mechanical and gas industry, as 1,000,000 BTU per hour is a considerable threshold that covers a wide range of commercial and residential heating systems.

This is particularly relevant when considering the typical applications a Master Class B technician encounters, as many systems employed in both settings fall below this limit. The capacity delineation ensures that licensed professionals are working within the scope of their training and expertise, guaranteeing safety and compliance with state regulations governing mechanical installations.

The other options either suggest lower limits or indicate no restrictions, which do not align with the defined capabilities associated with a Master Class B license. The specification of under 1,000,000 BTU per hour strikes a balance that allows for ample work while retaining quality control and safety standards necessary in the industry.