Okay folks, the baby is down for a month while in for some maintenance and service. While in there, I was asking about adding a second air to the bedroom. Has anyone added a non-factory second air? Meaning it was not installed at the factory.
If you did add a second air, was it tied into the ductwork or did it just dump into the bedroom. I would love some real world advice from folks with real world experiences.

Thanks and be safe!