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one pipe steam - pipe sizing

We're repiping my system, and now it is time for me to remember how to calculate the pipe sizes. I remember in one of Dan's books, there was a chapter about it, as well as an analogy about cars. Am I remembering correctly? Can someone point me to the book? I think it was either The Lost Art of Steam Heating Revisited or We Got Steam Heat. I have lost both books to lending them out, so I'm just going to buy the e-books so I'll always have them. Which one has that chapter?

Thanks in advance,


    STEAM DOCTOR Member Posts: 1,973
    Lost Art
  • BobC
    BobC Member Posts: 5,478
    In the spiral bound Lost Art the details of single pipe steam pipe sizing starts at page 83 and goes on for about 20 pages.

    Smith G8-3 with EZ Gas @ 90,000 BTU, Single pipe steam
    Vaporstat with a 12oz cut-out and 4oz cut-in
    3PSI gauge
  • foresthillsjd
    foresthillsjd Member Posts: 114
    edited September 2019
    So I found the section (thanks, guys), but it doesn't say anything about sizing the one-pipe vertical risers from the mains. What size should those be?

    Whoops, I just found it. Harder to read these things on an iPhone!