A fire-warden shall have authority to employ such other persons as, in his judgment, may be necessary to render assistance in extinguishing fire; and, whenever it shall not otherwise be possible for him to secure a sufficient number of persons to assist in extinguishing fire, he is hereby authorized to compel the attendance of persons and to require them to render assistance in the extinguishing of fire, under penalties prescribed in this act.
71 P.S. § 1318