Just had a couple of questions. I have been in new build townhouse for a month and noticed a couple of things but have been away several weeks so just dealing with it now. Some of this I am sure I am just ignorant but thought I would ask. 4 things each with pic attached
1) Pipe splitting from furnace outlet pipe is just open to the air. I was originally supposed to have gas hot water tank but they installed an electric tank in the last week before occupancy instead. Is this vent pipe for gas?
2) Lots of air coming out of this hole around smaller pipe when furnace fan is blowing
3) Open hole in return air near HVAC
4) Loose ducting that isn't attached to anything. Ducting travels through ceiling to rear of house, not sure where it goes (drywalled)
This is how it has been since I moved in, unfortunately I wasn't here for walk around so my wife had to do it with manager of home building company.Thanks for the help.