[wiredgeorge]

I am not sure there is any quality or functional advantage between Dometic vs Coleman. I put a Dometic Duotherm on my camper because my lower unit and thermostat were plug and play. If you are going non ducted I suspect it won't make a lot of difference. I would stay away from other brands of air conditioners as I don't know anything about them or have ever heard of anyone using one of the "off brands". They might be find... just don't know.