O-E Vapor System Manual
This manual was created by O-E Specialty Manufacturing Co. and outlines how to install the "O-E" Perfect System, which is a Vapor Vacuum heating system.
Hoffman Venting Valves for Every Purpose (1918)
This book, Hoffman Venting Valves for Every Purpose, was from the Hoffman Specialty Co. in 1918. It includes a lot of information about Hoffman valves for heating systems. You'll also find a discussion of Hoffman's Equalizing Loop, which came before their Differential Loop. Thanks to Frank "Steamhead" Wilsey for finding and sharing this document with us.
Categories
Leave a comment
Comments by Vanilla
Related Posts
H.B. Smith Company Oil Fired Cast Iron Hot Water Boilers (1972)
Here is the original Installation and Operating Instructions and Parts List for The H.B. Smith Company's Oil Fired Cast Iron Hot Water Boilers (No. OHB-13W). This is esti...
Heating the Henry Ford Museum
The Henry Ford Museum in Dearborn, MI has an interesting hot-water heating system. Take a look at the radiators below. They are from the Shaw-Perkins Manufacturing Compan...