This room that I am working on right now will be used for recording and will be about as soundprooof as I can get it without going too overboard cost wise. So, to me, that means that it is going to be very air tight too.
The thing about his house is that there are no furnace air returns in the whole upstairs. So I only have one heat vent in this room and no air return.
I don't need the vent for heat but will need to use the air conditioner in the summer. I can just open the door and let the room cool down and then not need the air conditioner much for a while when I close the door even tho the Air will still be on. I can also turn on the fan in the winter even tho I will be using a space heater (probably a radiator type because they are quiet) to heat up the room.
So the question is will the furnace fan blow much air into an airtight room that has no air return or at least an opening for the air that is already in the room to go to? If I just open the door for a while every half hour or hour or something like that would that be enough to keep enough oxygen in the air so I don't pass out or worse?
There's also going to be a concern too if the house is sold sometime in the future when I am not around and no one gets told how air tight that room is and they use it for a bedroom or something.
Well crap. I think I just talked myself into figuring out a way of getting an air return set up in that room. Better safe than sorry.
David