The Proper Operation of the Home Heating Plant: Simple Rules for Saving Fuel is "a book of information for all forms of heating systems" from our friends at the Minneapolis Heat Regulator Company. There is no copyright date on this book, but it is most likely from the 1920s.
The Improved Webster Type "R" System of Steam Heating is a service bulletin from Warren Webster and Company (The Pioneers of Vacuum Steam Heating), established in 1888.
This manual was created by O-E Specialty Manufacturing Co. and outlines how to install the "O-E" Perfect System, which is a Vapor Vacuum heating system.
Here is the original Installation and Operating Instructions and Parts List for The H.B. Smith Company's Oil Fired Cast Iron Hot Water Boilers (No. OHB-13W). This is esti...