Here's a look at the H. A. Thrush & Company product offering in 1946 for hot-water heating flow control valves, water circulators, pressure reducing valves, relief valves, dual control units, Thrush water heaters, and iron supply tees.
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).
This document contains the combustion chamber assembly instructions for the HB Smith Series 45 Mills Water-Tube Boiler for automatic firing with oil or gas (Steam, Vapor,...