Here is the patent for an interesting piping system, offered by the Murrays, father and son. Gerry Gill, who found and shares this with us, comments, "This patent lists both the father and the son, so the heating system patent was the son's work, but both must have worked together on heating because they have many patents, but all seem to be within the same 15-year range. I like the induced chimney effect on their radiators." We do too!
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).