The temperatures here in the Midwest are the lowest they’ve been in a couple of years. As a result, you may be seeing some ice on the inside of your home’s windows.
The glass on your windows has a lower temperature than other surfaces in your home, as glass is a good conductor. The warm air inside your home contains more moisture, which results in condensation. Since the windows are so much colder now than normal, the moisture typically associated with condensation is drawn to cold surfaces then freezes on that glass. This is especially true of older, single pane windows.
Newer double pane windows, with an argon gas fill and LowE coating can greatly reduce the cold air being transferred into your home, thereby reducing the potential for ice build-up on these extremely cold days. The technology available with today’s energy efficient windows not only helps with ice issues, but can protect your home from UV rays that fade floors, window treatments, furniture and upholstery.
If you have an older home with storm windows, make sure those are closed tight. The goal is to stop the cold air from getting inside your home as best as possible.
You could also reduce your home’s relative humidity by turning down the humidifier on your furnace. Most humidifiers nowadays have settings to remind you to what level it should be set based on the outside temperature.
Hope these tips help, so the only ice you see in your home remains in the freezer.