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The Development of One-Pipe Hot Water Heating and the OS Fitting

HeatingHelp
Administrator Posts: 586
The Development of One-Pipe Hot Water Heating and the OS Fitting
In this excerpt from his Classic Hydronics seminar, Dan Holohan teaches us about the roots of modern hot water heating.
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There is one very large building here that has this system. It is a U shaped 9 story large x manufacturing plant of Northern Electric. It had a central boiler room that fed 3 mains for each part of the U . Each main would run along the top ceiling and feed down.0
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