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.
This document contains the complete illustrated instructions for installing the Hercules Steam and Hot Water Heating System, a boiler manufactured by Sears, Roebuck and C...
This document contains the manufacturer's instructions for the HB Smith Series M450L Mills Water-Tube Boiler for automatic firing with oil or gas (Steam, Vapor, or Water ...
This document contains the jacket assembly instructions for the HB Smith Series 45 Mills Boiler (circa 1979).