Mornings Frost Light
The windows of our cottage are still just double pane glass. Some time, where there is more time, I’ll raise this to quadruple pane through thin film glazing like the super windows I built in the old farm house. Until then, on extremely cold mornings we wake to the most beautiful frost patterns on the windows.
Even the fancy windows and the double glazed front door with their rare gases get this effect on the inside of the glass. My experience is that building my own many paned windows out of outer layers of glass and then inner panes of stretch film is far more effective than the expensive commercial windows. It is really all about layers of static gas. A quarter inch or so thick for each gas layer seems to work well.
Outdoors: 21째F/2째F Partially Sunny
Tiny Cottage: 68째F/51째F