I apologize for the extreme ignorance of HVAC
I have a spare bedroom on the second floor of my home that I have converted into a home theater room. The room is somewhat small for a theater room but it's usually just me or me and my fiance in the room. We don't entertain alot of guest in there often. The room is about 15x11.
My problem is that with all the electronic equipment [front projector, amplifier] the room gets stuffy pretty quick. In doing some research I've learned that one of my problems could be that I don't have a return in the room [in fact I don't have a known return in any of the rooms]. The room in question has one supply vent that seemingly blows enough air. The HVAC system obviously has to have a return in the house. How do I go about adding a return to this room to increase flow? I have an easy to access attic. Is it as simple as cutting a hole in the drywall and adding duct work to the return duct? Will this return have enough suction to increase airflow in my room?
Any help would be appreciated.