In fairness to all, we don't discuss pricing on the Wall. Thanks for your cooperation.
I'm having a bit of an issue here. One of my second floor radiator is not getting steam at all. I changed the air vent on it, took the intake piping out to make sure it is not clogged and also checked the gate valve to make sure it goes up when I open it.
I do feel a tiny bit of air coming out of the air-vent for 2-3 seconds and that is it. I also hear "boiling sound" from the boiler when I open the valve and less noise when closed (this was done when I separated the radiator from the pipe).
What could be stopping the steam from reaching that particular radiator? Someone told me there could be an air bubble or vacuum near that piping. All other radiators nearby and the one directly beneath it are working.
Thank you in advance for any tips.