Technologically, the building was ahead of its time. Ray Oil Burner Company of San Francisco installed a new automatic oil burning system, which was not shown publicly in the Bay Area until the 1915 Panama Pacific Exposition in San Francisco. In addition to heating the building, the system provided hot showers for the mail carriers. On March 9, 1910, Post Master H. L. Tripp and his postal staff moved into the newly completed Santa Rosa Post Office.