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Radiator EDR help

keith123
keith123 Member Posts: 105
in Strictly Steam
I please need help figuring EDR on this type of rad. Thank you

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  • luketheplumber
    luketheplumber Member Posts: 160
    i think you have 14 edr total for those 2 panels https://www.gwgillplumbingandheating.com/webapp/GetFile?fid={86A4558B-A052-4675-9D83-6628E4E38694}

    Located in durham NC.

  • Hap_Hazzard
    Hap_Hazzard Member Posts: 2,917
    At that angle it's hard to tell how tall it is. If those wall tiles are 12" high, they'd be 9-Bs instead of 7-Bs. In that case the EDR would be 18. @keith123, can you measure the height of the radiator?
    Just another DIYer | King of Prussia, PA
    1983(?) Peerless G-561-W-S | 3" drop header, CG400-1090, VXT-24
  • Hap_Hazzard
    Hap_Hazzard Member Posts: 2,917
    Actually, @luketheplumber, you're probably right. That TP holder is probably 4", high, so that would make the tiles 8" high.
    Just another DIYer | King of Prussia, PA
    1983(?) Peerless G-561-W-S | 3" drop header, CG400-1090, VXT-24
  • keith123
    keith123 Member Posts: 105
    I have three all together. All are 21” wide. Heights are 25 x 2 and one at 38”
  • Hap_Hazzard
    Hap_Hazzard Member Posts: 2,917
    Do you have a picture of the 38" tall one? American didn't make the wall radiator in that size, so it must be a different make.

    American made five different units that could be put together to build larger radiators. This is a summary of the units' sizes and EDR values:

          height   width    EDR
    5-A   13⁵/₁₆   16⅝      5
    7-A   13⁵/₁₆   21⅞      7
    7-B   21⅞      13⁵/₁₆   7
    9-A   13⁵/₁₆   29¹/₁₆   9
    9-B   29¹/₁₆   13⁵/₁₆   9

    The radiator you pictured looks like it's made up of two 7-B units.
    Just another DIYer | King of Prussia, PA
    1983(?) Peerless G-561-W-S | 3" drop header, CG400-1090, VXT-24
    keith123
  • keith123
    keith123 Member Posts: 105
    edited November 2019
    thank you for your help !!!

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