Eckstein's and Busby's Patent Circulator was the first circulator. This document is from Charles Hood's A Practical Treatise on Warming Buildings by Hot Water, Steam, and Hot Air, Fifth Edition, 1879. The first edition of Mr. Hood's book appeared in London in 1837.
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).