It's not electric heat. What you have is a heat pump. It uses the refrigerant to heat the air. The heat strips are a back up for the heat pump. If it gets too cold they will come on the assist the heat pump. They will also come on to assist the heat pump if you turn the heat up 5 to 10 degrees. The heat strips are also used during the defrost cycle. This is Florida and we don't have too many below freezing days so it is not much of a concern.
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