Agree About Not Closing Vents

https://mariohhzw263.greyhavendaily.com/posts/warm-air-on-the-first-hot-day-means-north-fort-worth-ac-repair-and-a-call-to-comfort-experts-2

Agree About Not Closing Vents Agree with the point about not closing too many vents. I used to shut them in the guest rooms to cut energy use, and the system started whistling and running longer. Opened them back up and things calmed down