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Old apartment radiator spitting water

Building built in 1921. A large complex. Main radiator is spitting so much water that it’s ruining my walls. Brooklyn apartment so the land lord is non responsive. All other radiators are fine. Wondering if I can fix this myself

Comments

  • JohnNYJohnNY Member Posts: 2,432
    Is the shut off valve all the way open? It should be. The radiator's got to be able to drain.
    For installations, troubleshooting, and private consulting services, find John "JohnNY" Cataneo here at :
    "72°F Mechanical, LLC"
    Or email John at [email protected]
    John is the Boilers and Hydronic Heating Systems Course Instructor at NYC's Mechanics Institute, a professional Master Plumber, licensed by The Department of Buildings of The City of New York, and works extensively in NYC while consulting for clients in and out of state.
    John also oversees mechanical installations and maintenance for metro-area clients with his family's company, Gateway Plumbing and Heating along with his brother/business partner.
    question
  • nicholas bonham-carternicholas bonham-carter Member Posts: 8,126
    Agree with JohnNY that the inlet valve should be completely open.
    The presence of a thermostatic vent leads me to believe that the radiator was over heating at some point, probably due to overpressure. Are the other radiators so equipped as well?—NBC
  • questionquestion Member Posts: 9
    If the shut off is open all the way try putting some shims under the legs to have it drain better.
  • Jamie HallJamie Hall Member Posts: 12,717
    Is it the radiator valve (where the steam pipe comes in) or the radiator vent (shown enlarged in one of your pictures)? If it's the vent, you can also try a slower vent -- assuming the room heats OK with what you have now -- which can help sometimes. Particularly if the boiler pressure is too high -- which it probably is.
    Br. Jamie, osb

    Building superintendent/caretaker, 7200 sq. ft. historic house museum with dependencies in New England.

    Hoffman Equipped System (all original except boiler), Weil-Mclain 580, 2.75 gph Carlin, Vapourstat 0.5 -- 6.0 ounces per square inch
  • ChrisJChrisJ Member Posts: 10,870
    Wow guys, way to respond to a post 8 months too late. :p

    Wonder what ever happened with @rude_burrito
    Single pipe quasi-vapor system. Typical operating pressure 0.14 - 0.43 oz. EcoSteam ES-20 Advanced Control for Residential Steam boilers. Rectorseal Steamaster water treatment
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