During 30 odd Canberra winters, the oft heard cry in this house was "Shut the door", ie. passage door, loungeroom door, family room door, or nearly any other door, in order to try and keep the heat in the rooms in which we happened to be at that moment. No need to worry too much about the bedroom doors because there was no heating in them anyway.
Having had ducted heating installed last week, we now have to reverse the habits of the last 3 decades. The doors have to be left open so that the warm air can circulate and find its way back to the return air vent in the front hallway. I'm now opening doors almost at the same rate that I used to close them, especially as I don't think Richard quite believes that the rooms will stay warmer with the doors open. Seems illogical, doesn't it?
The heating was been very welcome during this very cold week, and it really got a good workout during Tuesday morning's -5º frost. I happily report that it was more than adequate to the task.