Outside Wall Cold Air Returns
Thank you for your reply....
I realize the returns should not be 'blowing' any air, that the purpose of them is so the air forced into the room has a way to return to the furnace and get filtered.
I now know the air is flowing in.....I held paper close by and it sucked to the grill.....I guess it just seemed to be coming out because I could feel 'coldness' and movement.
I will block the kitchen return. But, is there anything that can be done with the others? It seems they are a good source of cool air entering the room as the floor is cold by them.