Thanks to Mike Thies for finding and sharing this chapter. He writes, "This is from the book, Heating Design and Practice, 1951, by Robert Henderson Emerick. While not really about piping practice, it's the best I've found at explaining the science behind gravity systems."
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).