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EDR help on early modine convectors

Hi all,

Does anyone have any EDR info on these 1950's modine convectors? They all have covers, but sadly I didn't take any pictures with the covers on. we have eight of them in a postwar house, and need to determine connected load. they are not in Dan's EDR book that I could find.




  • jbmoff
    jbmoff Member Posts: 76
    Just curious as to why the vent is above the valve and not at the other end. :o
    I had one in my previous house - installed in the 1930's, but the vent was on the OPPOSITE side of the valve as other steam radiators necessitate.
  • BobC
    BobC Member Posts: 5,477
    I think that vent is at the end on the U shaped pipe that is surrounded by the fins.

    Smith G8-3 with EZ Gas @ 90,000 BTU, Single pipe steam
    Vaporstat with a 12oz cut-out and 4oz cut-in
    3PSI gauge
  • jbmoff
    jbmoff Member Posts: 76
    That's what I was hoping...
  • Steamhead
    Steamhead Member Posts: 16,832
    Use the cabinet height, width and depth. I think these might be in Dan's "E.D.R." book, but if not, use the charts for similar units and you should get pretty close.
    All Steamed Up, Inc.
    Towson, MD, USA
    Steam, Vapor & Hot-Water Heating Specialists
    Oil & Gas Burner Service
  • Adam_13
    Adam_13 Member Posts: 49
    Thanks for your help! I used ones that were similar. The cast iron manifold on the end is interesting as it has a drain plug. I wonder if there's some type of internal water seal trap that forces the steam to go through the coil loop before finding the air vent.