Anti-Corrosion Device Patent (1949)
Here is a circa-1949 patent for an anti-corrosion device in water heaters. Thanks to Joe Szakacs for sharing this with us.
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
Anode Patent (1924)
Here is a circa-1929 patent on an early anode, courtesy of Joe Szakacs, one of the great old-timers.
Amstan Wet Heat and Cooling Products (1957) - Part 1
Here is a catalog from Amstan (American Standard), published in 1957, that features their wet heat and cooling products. This document is divided into 5 parts. Many of th...
Steam Locomotive Firebox Explosion on the Gettysburg Railroad near Gardners, PA, June 16, 1995
Thanks to John Ewing for sharing this with us. He notes, "The long-dead designers of the steam locomotive involved included a key safety feature, and it worked, many year...
Beacon Boiler Reference Book, Boilers Made Prior to 1959, Part 2
This is an excerpt of the Beacon Boiler Reference Book, Sixth Edition and includes ratings for boilers made prior to 1959. This section contains pages 27 through 45 and i...
Amstan Wet Heat and Cooling Products (1957) - Part 2
Here is a catalog from Amstan (American Standard), published in 1957, that features their wet heat and cooling products. This document is divided into 5 parts. Many of th...
Beacon Boiler Reference Book, Boilers Made Prior to 1959, Part 3
This is an excerpt of the Beacon Boiler Reference Book, Sixth Edition and includes ratings for boilers made prior to 1959. This section contains pages 46 through 64 and i...
Amstan Wet Heat and Cooling Products (1957) - Part 3
Here is a catalog from Amstan (American Standard), published in 1957, that features their wet heat and cooling products. This document is divided into 5 parts. Many of th...
Beacon Boiler Reference Book, Boilers Made Prior to 1959, Part 4
This is an excerpt of the Beacon Boiler Reference Book, Sixth Edition and includes ratings for boilers made prior to 1959. This section contains pages 65 through 86 and i...
Amstan Wet Heat and Cooling Products (1957) - Part 4
Here is a catalog from Amstan (American Standard), published in 1957, that features their wet heat and cooling products. This document is divided into 5 parts. Many of th...