Honeywell Air-Seal Generator
The Honeywell Air-Seal Generator is a turn-of-the-century offering from Honeywell. It is similar to their Heat Generator. Thanks to Alex Marx for scanning this brochure f...
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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Asbestos
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Boilers - 1959 to 1980s
Boilers Prior to 1959
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Recent Articles in Heating Museum
The Stack Heater Company No-Tank
After moving the gravity-hot-water-system expansion tank from the attic to the basement, The Stack Heater Company introduced a heating system that didn't need a tank at a...
Thrush Flow Control Valve
Here instructions for the Thrush Flow Control Valve from the H.A. Thrush & Company. Thanks to Mike Zydiak for finding and sharing this document with us.
Thrush System of Hot Water Heating
H. A. Thrush & Company of Peru, Indiana published this book for contractors about the Thrush System of Hot Water Heating.
Unusual Hot Water Heating Method (1922)
Before circulators arrived, heating contractors tried some very interesting things to get the water to flow where they wanted it to flow. Here's a good example of that fr...
A Working Method for Calculating a Floor Type Radiant Heating System
This article about calculating floor types for radiant heating systems first appeared in Plumbing & Heating Business magazine in September 1941.
Actual and Claimed Advantages of Panel Heating
The things we talk about today, they talked about more than 50 years ago. Check out this article from the Western Plumbing and Heating Journal in 1950 regarding the actua...
Audel's Plumbers and Steam Fitters Guide #3
This document is from the 1949 edition of Audel's Plumbers and Steam Fitters Guide #3 and includes an informative section on radiant heating. Thanks to Larry Weingarten f...
Bundyweld Tubing
Bundyweld was lightweight tubing that came out of the automobile industry and was a radiant-heating alternative to wrought iron and steel pipe in the days following World...
Byers Wrought Iron for Radiant Heating
A.M. Byers Company sold wrought iron pipe, not systems, but they put this booklet together to promote radiant heating. It's really well done, with lots of installation ph...