In 1897, Eureka made an early version of what we now call the diverter tee. It worked by creating a drop in pressure along its run, which encouraged the water to flow int...
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Recent Articles in Hot-Water Heating → Tees
Eureka: An Early Diverter Tee
![o s fitting](/assets/article-images/o-s-fitting__FillWzMwMCwyMDBd.gif)
The O-S Fitting
I was looking at a photograph of Crosley Field, a grand, Cincinnati, Ohio baseball stadium that burned to the ground in 1900. The men in the photo are wearing derbies and...
![Diverter tee in basement ceiling](/assets/article-images/Diverter-tee-in-basement-ceiling__FillWzMwMCwyMDBd.png)
Diverter-Tee Q&A
Q: What's the principle of the diverter-tee system? A: This system lets you supply hot water to a radiator and return cooler water from the same radiator by using a singl...
![108119 1](/assets/article-images/108119-1__FillWzMwMCwyMDBd.jpg)
A Different Way to Pipe
I was raised by Bell & Gossett and gobbled up the writings of the late, great Gil Carlson for a lot of years. I learned about Monoflo systems and primary-secondary pumpin...