We’ve got big old wooden windows in this house.
They are two pane, but I suspect if we upgrade to triple pane windows, we may have less frost in here:
It’s a balmy -39°C right now. Hank still went for a walk with me this morning, but we cut it in half and went for only 15 minutes.While he doesn’t act cold, I don’t need to freeze him solid. (The early morning walk helps him go back to sleep in the morning while I work.)
Here is a picture after our 30 minute walk yesterday morning: