Having issues with window condensation/frost due to the extreme cold temps? This is very normal in our area. The problem can be remedied by adjusting the humidity level in your home (it may be too high). This article from one of our heating and cooling partners explains the problem and has some good advice!
If you do find yourself with condensation remember to wipe it off completely as it may cause damage to wood frames and sills.
Click here for more information: http://stecklingbuilders.com/docs/window-condensation.pdf