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Very Old boiler, But how old???

Im installing a boiler this weekend the old boiler is enormous and looks to be extremely old and once coal fired. For my own curiosity, I am trying to find out what this boiler dates back to. The info is as follows:

National Heat Extractor
200 series
boiler model : a/u 205
Serial number : 107825
The National Radiator Comapny

If and one can track down a date, or knows where to do so, let me know. Thank you for your time.


  • Steamhead
    Steamhead Member Posts: 16,736
    The 200 series of Heat Extractors

    was made during the 1940s and 1950s.

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  • RonE
    RonE Member Posts: 29

    Old National... They sure didn't cheat on the cast iron back then. LOL.
  • Betz
    Betz Member Posts: 58
    I have

    an old coal fired boiler made by the American Radiator Company, it's a No. 1 Ideal Red Flash Boiler. As far as I can tell it was popular around 1900 or so, it's still there, not very efficient and has some monstrous supply lines coming out of the top of it. Makes it hard to add the outdoor boiler I've been talking about. If only I had a way to heat up my return water...hehehe, still working on that plumbing adventure.
  • John Mills_3
    John Mills_3 Member Posts: 221
    Let's see

    some before & after shots!
  • Betz
    Betz Member Posts: 58
    they are way too

    embarassing, I will post a couple but realize I'm no professional and I've learned most of what I know about this AFTER I did the initial plumb-in. I'm learning so much I'm thinking about helping others with similar installs however. Remember as you look that this is still a work in progress. But nevertheless it's nice to have the free heat, even though I'm not getting quite the efficiency I want to yet.
This discussion has been closed.