In fairness to all, we don't discuss pricing on the Wall. Thanks for your cooperation.
Question about two pipe system
I recently had to replace my steam boiler. After the new boiler was installed I noticed two radiators (one on floor right above other) were not working well. The house was without heat for ten day And it was rather cold. My plumber came and installed an air vent on one of them and it is now working. However i am concerned because I didn't think two pipe radiators needed air vents and I'm concerned that the real problem isn't being addressed. Will adding the air vent do any damage? Is this just an alternate fix to replacing the steam trap/ release on condensate pipe? I
Would really appreciate any advice. Thanks!!