I am a painter,wallpaper hanger by trade but also a homeowner in search of an answer. I have an old house with 1 pipe steam heat. We have lived here for 25 years listening to the sound of the radiators all hissing madly on the second floor and never thought much of it. Well I then learned that this was not right ,( as you guys know). I have replaced all the vents,adjustable ones to the 3 closest to the thermostat(adjusted as low as it will go,#1)and the system is working very well,that is, no more hissing. The problem is now the upstairs,and all other radiators farther away from the boiler barely get warm,even if the thermostat is set at 75. This means that the wife gets up to a COLD bathroom and this is not a good thing. I was thinking of a remote thermostat to put on the second floor. I know this is going to make the 1st floor very warm but the bathroom just needs to not be cold. Any other ideas? I am lost here.

Thanks
Chris