Hello 
I was hoping someone would give me some insight as to what my options are in this… situation.
I just moved in on January 1st to my new place. A few days ago, I get a knock at the door, and it’s Union Gas. The gentleman tells me that he was sent to check and make sure everything was working properly in the home, so I let him in and he went downstairs. A few minutes later, he came back upstairs and told me he had “good news and bad news” for me. My heat was fine, but he had cut my line to my hot water tank - out of nowhere as far as I knew. Turns out there was a notice that the B-Vent on the roof was busted (the form doesn’t say roof but I’ve now gathered that’s where it is. He told me to take it up with the people I rent from, and to have a nice day.
I went to the office and told the rental property about this sudden occurrence, and they seemed confused and surprised. They went and asked someone (I’m guessing one of their contractors) who came back with them and told me that it’s a common mistake they deal with it, and I’d have to talk to the hot water rental company. Which I did, who came out (I hadn’t told them what vent) and the tech informed me it’s not them, I’d have to talk to the people I rent from.
I called Union Gas to try to sort this out - but I’m not the account holder to the work order so they won’t give me any details about the issue whatsoever. I took it back to the office and advised that both Union Gas and [The hot water rental company] said they had to fix it. More confusion, and shuffling, and I had to get to work but my husband took the day again to stay home for them. They said they’d figure it out and call us. No call, and finally my husband flagged down the one guy from the office who I’d been dealing with and asked if we had any updates. He said he had to go but it was with another person in the office to handle and to have a good weekend.
The office and the people in it close at 4PM and don’t open again until 12PM Wednesday. The only “emergency” line they have is to the resident maintenance worker, and from what I understand you need a specific contractor for this work.
I know technically the landlord is supposed to provide you with hot water as a basic condition - but in this case it looks like perhaps this is my responsibility? How would I go about doing this? Should I just sit back and wait and hope they take care of it? I did email them as well before going into the office but they didn’t reply, and I don’t want to be too pushy. I just know once we figure out who is responsible, Union Gas takes like 2 days to come out plus the time it’ll take a contractor. Also - I’m sick, so the YouTubed, DIY option I was considering would probably not work that well. 
Anyone been through this before? Am I being too pushy? Advice would be greatly appreciated