Originally Posted by J_P_A
I'm not particularly familiar with HVAC, but it seems like pulling air out of your room and into the attic will also pull the cool air out as well, even if your ducting is located at the equipment rack and the PJ. But, it seems like the cheapest and simplest thing to try. If it doesn't work, you won't be out much.
EDIT: Are the rack fans on a thermostat? If so, you could try moving one to the back to vent into the attic as you suggested. The way you have the vent in the bottom open to the room, and then maybe put an exhaust into the attic at the top (in the back) seems like it would keep things cool even when not in use. Again, seems like a cheap fix you could try.
I know this wasn't on your list of options, but could you put an electronic damper in your supply and return and add a thermostat (or even a remote sensor) for your theater? That way you could cool the room independently of the rest of the house.
Another option might be adding a dead vent that pulls cool air from another room and exhausts it back into the house using your existing ductwork. Without knowing more about the routing of your duct work, it's tough to make many recommendations.
No, fans have to run pretty much constantly to keep it all cool. I experimented with slowing them down, but it got hotter than I would like in there. The Onkyo is known for it's heat generation and add up the emo and the playstation, well there's a lot of heat coming out that cabinet..........
So are you saying(which is what I'm thinking) that I should pull air from the cab
and vent to the attic? it's the easiest to do, and should pull air from the rest o the house for any air removed to the attic......
Wait, when the HVAC comes on will it overpower the fans in the cab and pull attic air in the cab? This would be bad...
How can I cool this Room!!?