HUMIDITY

 Hope you don't live in a cold winter climate to keep 60% humidity your windows will have ice on the inside. If you run a whole house humidifier beyween 35 and 45% and you will need to dial that down in very cold weather to around 25% maybe lower in sub zero weather. 

They are new triple pane windows in an energy efficeint house it has nothing to do with the windows it has to do with to much humidity in a house  in very cold winter climates. Actually the tighter the house the worse the problem running whole house humidifiers. That's why whole house humidifiers with automatic humidistats adjust the humidity down as the temperature drops. 

That's optimal between 35% and 45%. 

I did consult with an expert that’s why I know it was the whole house humidifier keeping the house to humid the expert switched the hunidistat from manual to automatic and it was a miracle no more ice on the windows.

The expert also informed me I was probably getting ice in the walls as well that's why it's best to let the humidistat control the humidity as it adjusts for outside temperature changes.