herald (plural heralds) 1  A messenger, especially one bringing important news. 2  A harbinger, giving signs of things to come. ( 3 heraldry) An official whose speciality is heraldry, especially one between the ranks of pursuivant and king-of-arms. ( entomology) A moth of the species Scoliopteryx libatrix.
a fire nozzle weighs approximately  ten to fifteen pounds.
1 Be appropriately mounted to a fixed structure. 2  Fire extinguishers weighing less than 40 lbs must be mounted on a permanent structure between three and five feet from the floor. 3  The extinguisher must be unobstructed for ease of access. 4  It is recommended that fire extinguishers are mounted in an area of egress.