Agree About Not Closing Vents

https://garrettrspz468.hexaforgey.com/posts/comfort-experts-on-replacing-your-ac-when-north-fort-worth-ac-repair-no-longer-makes-sense

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