Section 10G. Any certificate may, after due notice and hearing, be suspended or revoked by an examiner for a violation by the certificate holder of any rule or regulation promulgated by the board relative to construction, installation and operation of oil burning equipment. Any applicant for an oil burner technician certificate or holder of such certificate aggrieved by the action of an examiner in refusing to issue or in revoking or suspending such certificate may, within ten days, appeal therefrom to the chief of inspections of the department, who shall designate three inspectors to sit as a board and to conduct a hearing on such appeal within thirty days. The decision of said board shall be final.