Trane Mercury Seal Ad (1901)
This document contain an ad from Domestic Engineering (circa 1901) featuring the Trane Mercury Seal which was attached to an old steam heating system or to an old vapor p...
Heating Museum Help Topics
Take a stroll through HVAC history in our Heating Museum. This section of our website preserves history and answers that so-important question: What the heck is that thing? Whenever you run across anything unusual, chances are you’ll find the old literature about it right here.
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Recent Articles in Heating Museum
Trane Steam Heating System Patent (1901)
This document contains the Trane Steam Heating System Patent circa 1901. This system used mercury to produce vacuum.
What Do Space Exploration, Beer, and Hydronic Heating Have in Common?
In the early 1900s, hot-water heating systems had to rely on gravity. This system was simple because it had no moving parts (except for the water, of course), but it was ...
Nash Engineering Company Steam Heating Controls
These pages are from Nash Engineering Company's Bulletin #402-D describing their variable vacuum sub-atmospheric steam heating controls using their own vacuum and condens...
GE Atomizing Boiler
Here is some information about the GE Atomizing Boiler. The first part of this document comes from the 1960 Audel Oil Burner Guide, written by Frank Graham. The second pa...
Educating the New York Market (Wallace-Eannace Assoc. 1986)
This Wallace-Eannace Assoc. newsletter from 1986 focuses on industry education at the time and the early career of Dan Holohan, industry author and teacher.
Ashton Valve Advertisement (1872)
Here is an advertisement for H. G. Ashton's Insulated Lock Safety Valve from 1872.
Ashton Valve Company Patent (1872)
A patent for H.G. Ashton's Improvement in Lock Safety Valves for Steam Boilers. (Courtesy of Rick Ashton, great great grandson of Henry G.
Windows
No more double windows! That was the title of an article I read in the Chicago Evening Post. The year was 1911 and the page was yellowed with age.
ARCO Cast Iron Radiators (1959)
This brochure from American Standard Hot Water and Steam Heat contains ARCO cast iron radiators literature and ratings from 1959.