Oh I completely agree about the heat. I think most of the year it will be fine. During the hot times I want to use a cooler to keep it around 80. I would think there are small coolers that could maintane a small space like that easily. It has two openings on the side of the wall about the size holes in a cinderblock. Isn't that big enough for the vent hose that comes out of those one room ac units?