Looking for EDR of these rads

The Steam Whisperer · November 1

The one with the open end is a water type and the closed end is a steam type….both in a 1 pipe steam system in circa 1904 building in Chicago. The water types are about 9 1/2 inch deep at the farthest edges and the steam types are 10 inches. There are 21 inch and 38 inch tall models. No names cast into them. These appear to be the originals as the building is full of them.

Steamhead · November 2

I've seen these beauties before, but never knew who made them. Do they have the usual 2-1/2" section spacing?

The tall one looks like an expanded 3-column type, so I'd go with an average of 6.5 square feet or so- that splits the difference between the standard 3- and 4-column.

Is the 21-incher an expanded 3-column or 2-column? If the former, I'd say 3.5 square feet per section; if the latter, 2.67. Both split the difference between the two standard types.

EDIT: The Star radiator, made by U.S. Radiator circa 1905, was an expanded 2-column. The 20-incher was rated 2-2/3 square feet, so there's that. Here's the link- go to page 24 of the PDF file:

https://www.heatinghelp.com/assets/documents/210.pdf

The Steam Whisperer · November 2

Thanks, Steamhead. I figured you'd have some experience with these. They are 2 1/2 inch per section. Figuring 3.5 edr per section of the 21 inch units ends up totaling 28 edr for an 8 section. However, those 8 section radiators only have 1 inch risers and supply valves which are supposed to top out at 20 edr. Also, even with a number of radiators removed, the single 3 inch main is carrying 1269 edr and is supposed to top out at 1163. This makes me wonder if these rads really have that much area. Of course, in the early days, many systems did not conform to standards ( I.e. 1 1/2 inch one pipe steam supply mains), so it looks like this may just be one of those systems. It would be nice if we could put in a little power burner boiler and then tinker with the input to shed some light on just how much capacity those radiators are actually using. We probably won't be replacing this boiler till spring, so hopefully we can get a 80 series by then, otherwise maybe a Smith 19 or Peerless 64.

Steamhead · November 2

We just installed a 4-80 steamer- yes, they are available.

The Steam Whisperer · November 3

Where are you getting or 80's from?

mattmia2 · November 4

made by the chicago tutu and radiator company…

mattmia2 · November 4

you could run the current boiler on a long cycle and see how much pressure it builds/how quickly it cycles off again after it cuts back in and get some idea how oversized it currently is

Steamhead · November 4

https://forum.heatinghelp.com/discussion/comment/1870689#Comment_1870689

Schumacher & Seiler, a local company that's now part of Reece.

Looking for EDR of these rads

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