A boiler is defined as “a closed vessel in which water or other liquid is heated, steam or vapor is generated, steam is superheated, or any combination thereof, under pressure or vacuum, for use external to itself, by the direct or indirect application of heat.” Also included are fired units for heating or vaporizing liquids other than water where these units are complete within themselves. This definition includes water heaters that exceed 200,000 Btu/hr heat input or 120 gallons nominal...| www.labor.nc.gov
In North Carolina, the rules, regulations, and laws governing boilers are primarily overseen by the North Carolina Department of Labor, Occupational Safety ...| www.wcrouse.com