In fairness to all, we don't discuss pricing on the Wall. Thanks for your cooperation.
What is or are the conditions where the water boils out of the boiler, boils through the pipes and comes out of a main vent? This is in a 8 unit apartment building and the vent that the water comes out of is at the opposite corner of the basement. Of course there are other issues that come with this condition (water hammer etc.) but I think if I solve this issue, the others go away... Please help.