Hi all, I've noticed that my HVAC has seemed to always be in fresh air mode lately. I am trying to test it out more and am wondering if there are scenarios when the HVAC would be expected to be on recirc. Over the past couple weeks, I have not yet noticed the HVAC in recirculate mode when it is on Auto. It seems like it would be more efficient to use recirc mode more. I have noticed this trend whether on range mode or normal. This thread indicates that the HVAC tends to default back to fresh air when put on recirc, and that it will switch over between the two modes every few minutes. My experience has been it always seems to run on recirc. So, is there a scenario where HVAC should end up on recirculate mode? What have you all experienced?