valliant circulation troubles

[phila28]

I have a Valliant oil boiler and a few months ago I overhauled my kitchen and dining room which included sliding door. Along the wall of the what is now a sliding door there was a large section of rad, which was removed. I have now got into the winter season needing my heat and the one rad left in the room is cold? All that was done to this was removed section and capping it off, this was recommended. However I was looking at this and thought that this should be reconnected to circulate, it this correct? Now within a few days a weak and rusted elbow seems to have broke, and is leaking water in my basement? I have shut the boiler down for now but am in search of proper progress. I am a new, young home owner, and looking for help.

 

[Bahco]

Do not join pipes together but leave them capped.
When you have fixed your leak, turn all your rads off bar the one not working and see if it heats up.
If so you will need to balance your system. (search this forum).
Might be worth getting a pro in. They are very cheap in the USA

 

[kevplumb]

one pipe system and youve broke the loop ?

 

[phila28]

First let me thank every who read and those who read and replied. I appreciate everyones help.
Yes, I think it is a one pipe, well two, one circulates and one is a return?
I had already fixed the leaking side, just old pipe, so I had rebuilt 3/4" piping including a new valve, which was also broke. But am still working with the rad that was cold.
Is this possible, that I broke the circulation and it just never made it to that rad? This is what I am hoping. If I hook it back up, I can heat it again.
My kitchen is kind of small opening into my dining room, which the rads in the dining room where the only heat for those two rooms, which during remodeling, I figured I could sacrifice removing one 10ft. section, and keeping the other 10ft section. This is kinda why I am working on this, you can see that this is my only heat for those two rooms.
Again thank you everyone.