Interesting point about combining storm windows with secondary glazing. Have you actually tried this yourself? I'm genuinely curious because I went th...

Thermal curtains definitely help, but have you considered drafts under doors? Found sealing those gaps with some cheap weather stripping makes a huge ...

Fiberglass windows are definitely worth considering, especially for energy efficiency. Have you looked into how they compare insulation-wise to vinyl?...

Did you notice if the ice crystals formed mostly around the edges or all over the glass? Sometimes even with good sealing, if your indoor humidity is ...