While Michael offers a tour of the building to Holly, he states that he loves the downstairs entryway because that is where Toby announced his move to Costa Rica {Night Out (#4.11)}, but Michael was away in New York when Toby made the announcement to the Dunder Mifflin employees.
Fire Sprinklers would not discharge because of heat from candles. The fusible material would have to reach at least 135 degrees, in which case the room would be uninhabitable.