don't count on air. I went to a RVer's quilt retreat in Texas in August, the secondary room I was in, the air didn't work. Three days. 97-100 degrees outside. To add insudt to injury, in the main room at least 10 spaces were empty, but quilters taking classes had their crap there 'saving their space' for night sewing. Makes me cross all over again just writing about it and I doubt I'll ever be inclined to go to a retreat again.