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Greetings Steven,

I have answerd the type of question a few times today. (must be getting cold out there)

It does not matter what kind of heat you have, it revoles around three factors;

The amount of moisture in the air in your home.
The Temp. inside.
The Temp. outside.

Insulated glass will frost up if the formular adds up.

Remove/reduce the moisture inside with a de-humidifier and added vents.

Good luck,
Jason