Thanks for watching my video by the way and were is the radiator located in your house? And what part of NYC are you in?

@@BIDuniversalinfoIm in Brooklyn Im just short of thinking we may have a poltergeist since a licensed plumber has no idea how to fix this (just kidding) . It never happened before he did the conversion, - Its The radiatior is on the first floor in bedroom. Plumber said:::" Once I opened the valve all the way it got hot immediately. I actually also raised the pressure in the boiler as well. I have it running at 38 psi which is over 10 psi more then normal because you have a big system there with large diameter piping. I also installed a larger circulator pump and larger expansion tank on your system. But everything else is getting hot so thats not the issue. The reason I put the larger pump and tank was to make sure the upper floor was good which it is. The valve on that radiator doesn't have a handle on it but I was able to get it open with a pair of pliers, I know for sure it’s fully open now.

Then he went back later and bled teh radiator again and said this: Every single pipe in the basement is scorching hot. Can barely touch them. Every radiator in the first floor is hot as well. The bedroom radiator is bled. I took another 10 coffee cans worth of water out of it just to be sure but it is still not getting hot. It is getting warm, but not hot. And I honestly do not know why. If there was an air pocket I would have gotten it out by now.

@@missdhara6434 Sounds to me like you have an older gravity return hot water heating systems. it also sounds to me that your having a lack of water flow going into the radiator and if I'm correct then it would be a matter of increasing the water into the radiator but I would need to know the layout of the system to better understand what's happening.