Central vac: garage or basement?
Garage: no dust, no noise... but it would be taking the warm air from the house and expelling it in a really cold garage in the winter. Can't that cause condensation in the central vac unit and make it rust sooner? What about condensation on the garage walls and stuff on the shelves?
Basement: I guess you save on the heating costs in the winter.. that's the only good thing I see. Oh, I could always exhaust it outside I suppose. It would be in the furnace / hotwater tank room so dust isn't that big of a deal.
That said, is garage really the way to go ?