Turbonics offered this unusual steam system, which Iron Fireman had come up with years before. It was called SelecTemp and offered self-modulating zone heating. Thanks to Gerry Gill for finding and sharing the document on The Wall, and to Frank "Steamhead" Wilsey for bringing it up again years later.
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).