First time Nissan owner of an '06 S. We're approaching winter now and when I have the fan set at zero and the fresh air/recycled air setting set to fresh air (i.e. unlit), the heat that comes out once the engine warms up is really hot. I have not had to turn on the fan once yet. Is this just passive heat straight from the engine? That engine must be really inefficient to put out so much heat, but in winter, I'm not complaining!