I agree what the writer before me said. Up at the lake you may not need air (and all mentioned sights are great). But down here in the Twin cities area, most of Wisconsin and South Dakota you need air. I had all my side windows tinted with a dark, mirrored/reflective film made by 3M. This film helps a lot to keep the unit cool. I also have the eflective bubble stuff cut to a size that I can put it to the outside of the front window. I hold it there with some bungee cords and the windshield wipers. This makes a lot off difference with the inside temperature. I tested this out about two years ago while parking in March in Port Charlotte, FL. My unit has about the identical size as yours has, and I get along with one air con. However, I have a ceiling fan installed in the bedroom to keep better air movement there.
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