Guy at the housing office: Yeah, your heat probably hasn't been turned on yet this year. When you do turn it on, make sure you open up all the windows because your fire alarm will go off.
Guy: You must not be from around here. All the dust collects in the heating system and burns up when you first turn it on. Usually sets off the fire alarm. Air it out!
Well, that seems safe. Thanks for the heads up.
I'm sure there will be many differences, but this was an unanticipated one.