This morning was a fairly chilly morning in Central Florida (45 degrees this morning). When I left home to commute to work, I had HVAC completely off but the windshield started fogging up and I turned on the fan (fan only, HVAC was set to cool with A/C being off and temp set ot 72 degrees) and fairly warm air was coming out of the vents (definitely a lot warmer than outside temp). Now, I wonder if this has something to do with the Octovalve? I always run PLAID mode in my car and I believe that it does heat up the battery for better performance. As a result, I suspect that the octovalve is redirecting some of that heat to the cabin?? Am I off on that?? How else could warm air coming out of the vents with the heater/A/C off and only fan running?