

Thanks for this question. As the weather cools, I’ve started considering the same thing. Leaving the windows open overnight never seems to cool the house down enough on its own. I’ve been considering using the A/C to help, that way I don’t have to run it as much during the day. Glad I’m not the only one thinking this way.
I’m wondering if this will harm the operation of the air conditioner in any way, given that I have a whole-home HVAC system, and they’re designed to work with the windows closed.
You cannot. I’ve tried.