Welcome! Here are the website rules, as well as some tips for using this forum.
Need to contact us? Visit https://heatinghelp.com/contact-us/.
Click here to Find a Contractor in your area.


is the valve on the rad actually considered a trap?  First run in with one of these


  • sort of

    The original Moline valves are orificed to limit the amount of steam that enters the radiator at 8 ounces of pressure to about 80% of the condensing capcity of the radiator.  Since all the steam is condensed in the radiator, no trap is needed.    Just keep the pressure below 8 ounces and you'll no problems and incredibly low fule bills and exceptionally even heating.
    The Steam Whisperer (Formerly Boilerpro)

    Chicago's Steam Heating Expert

    Noisy Radiators are a Cry for Help
This discussion has been closed.