In this video, Dan Holohan shares his knowledge about hot-water heating systems and the Eureka fitting. 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 into the radiator. Want to learn more? Visit https://heatinghelp.com/. Want to be an expert? Get a copy of Dan Holohan’s book Classic Hydronics: https://www.amazon.com/Classic-Hydron...