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Searching the Heating Capacity of Boiler.

Rob_40 Member Posts: 55
My old coal steam boiler will need to be replaced soon.  I was wondering what its heating capacity is.  Found some old catalogues, but they didnt list my particular boiler: 

American Radiator Company (ARCO) Ideal,

Size 5-22-S, Series No. 22-1B. 

Can anyone direct me to a source of information.


  • crash2009
    crash2009 Member Posts: 1,484
    Beacon Boiler Reference Book Pre-1959

    There is a 5-22 listed on page 24.  The steam (EDR ?) is listed as 470.  Was your boiler installed in between 1913 and 1920?  http://www.heatinghelp.com/files/articles/940/182.pdf    For anyone else that may be looking for the specs on an old boiler, info on many more boilers is kept in the library here   http://www.heatinghelp.com/article-categories/121/Beacon-Boiler-Reference-Book-Prior-to-1959

    R.Harold were you just curious as to what size your boiler was rated for?  Just because it might be rated for 470 EDR doesn't nescesarily mean you should be looking for one of todays 470's.  The best way to size a steam boiler is by measuring the radiation of your existing radiators.  You never know what changes may have been done to the old place between 1914 and 2011.

    We would be glad to help you with your decision.
  • Rob_40
    Rob_40 Member Posts: 55
    Just Curious

    Thanks for directing me to the specs.  I havent explored everywhere on this site yet.

    I undestand that I need to calculate the actual radiation before choosing the right size replacement boiler.  So, I was just curious how closely the old boiler will compare to what I need. 

    The house was built around 1920, so this boiler must be original equipment for this house.
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