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EDR for this Convector and its bigger brothers.

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The Steam Whisperer
The Steam Whisperer Member Posts: 1,215
in THE MAIN WALL
I have a house with a bunch of these on the first floor....the second floor is US Radiators standing iron. I think they are from around 1930 and in Chicago. I couldn't find them in EDR. Any ideas?

The Steam Whispererer
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  • Alan (California Radiant) Forbes
    Alan (California Radiant) Forbes Member Posts: 4,002
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    Check on page 257; U. S. Copper Convectors, Type RC.

    Presuming they are 48¼" long:
    4" deep - 25.3 EDR
    6" deep - 36.4 EDR
    8" deep - 48.5 EDR
    10" deep - 50.5 EDR
    8.33 lbs./gal. x 60 min./hr. x 20°ΔT = 10,000 BTU's/hour

    Two btu per sq ft for degree difference for a slab
  • Steamhead
    Steamhead Member Posts: 16,835
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    Might also be American Radiator Co "New Murray Radiators", which were actually convectors. Pages 133-135.
    All Steamed Up, Inc.
    Towson, MD, USA
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  • EzzyT
    EzzyT Member Posts: 1,295
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    Those are the New Murray Radiators like Frank mentioned
    E-Travis Mechanical LLC
    Etravismechanical@gmail.com
    201-887-8856
  • The Steam Whisperer
    The Steam Whisperer Member Posts: 1,215
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    Another bit of info......These are cast iron, not copper or aluminum. So they wouldn't be either of those two.
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  • Alan (California Radiant) Forbes
    Alan (California Radiant) Forbes Member Posts: 4,002
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    You might have to settle for something close. Check on page 250 which shows Capital Cast Iron Convectors made by U.S. Radiator Co. Choose convector dimensions closest to yours and that should get you in the ballpark.
    8.33 lbs./gal. x 60 min./hr. x 20°ΔT = 10,000 BTU's/hour

    Two btu per sq ft for degree difference for a slab
  • The Steam Whisperer
    The Steam Whisperer Member Posts: 1,215
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    Yes, that's were I was headed.

    Thanks everyone!
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