The Johnson heat regulating apparatus in schools
Subtitle: for sale by National Electric Service Co., 120 Broadway, New York
Publisher: The Co.
Published: 1887
Place of publication: New York?
Language: eng
Number of pages: 16
Subjects: Thermostat; Catalogs; Heating; Control; Equipment and supplies; School buildings; Heating and ventilation
Notes: Cover title.

Includes fuel consumption estimates.

Includes list of schools which installed the apparatus.