Old Steam Radiator --need EDR

Ken_40

Was I wrong!

Check this out:
http://www.time.com/time/magazine/article/0,9171,882407,00.html

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jeffhelton

Need EDR on this Radiator

I need to know the EDR per section of this radiator the unit is 3in deep 2in per section and 17.25 in tall. Thanks for your help in advance...

Ken_40

Location?

The location of the house might provide a region of probable manufacturers - which would allow better identification, but it looks like a SunRad style. Assuming there are no internal castings/emitters, just what the picture shows - which is all external, I'd use the SUNRAD basics; e.g.; one s.f. of EDR per one inch of width. What you have pictured and stated would be a tad less than that formula - since it is based on a SUNRAD which is 5" thick (not 3" you have) and the height is 20" (not the 17-1/4" you have). The sections are the same in width; 2" each.

Straight math would suggest you should be in the .75 S.F. of EDR per inch of width realm.

Is the rad from Canada? Might you know the age of the home it's in?

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jeffhelton

Radiator EDR

The radiator is in Northern New Jersey. The casing is probably Tin or sheetmetal. It has a 3/4 steal pipe that zigs and zags back and forth inside the enclosure. The pipe is covered with metal fins. The year is somewhere between 1900 and 1930. It is like the Murry radiator but the enclosure is much larger it seams. I have attached a breakdown of the Murry radiator element. Thanks Ken for your comments.

Ken_40

Bingo?

Page 243 of EDR (Holohan) shows an identical cabinet form, but suggests copper serpentine coil inside, with baffles similar to what your patent/drawing shows, but not identical.

The name in the book is Shaw-Perkins out of Philly. It does not list any steel pipe versions. Can you verify the internal pipe material? If copper, I suspect the table and outputs noted would be accurate. If steel, all bets are off.

Murray as a brand name is not in the EDR book, and the book is very much lives up to its title, "Every Darn Radiator."

Perhaps the Murray is a model, not a manufacturer? Perhaps it was a smaller manufacturer,which was very common back in the day, that went in and out of business before making a name that is recallable?

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