The 77 Tioga I just bought has a swamp cooler up top. The fan works great on shore power and the drum is still there full of straw with the tube for water. Need to see if the motor turns the drum. But.... the table underneath this thing has deteriorated from water damage. I have a feeling it wasn't a leak in the roof but the swamp cooler itself. So I'm debating fooling with the thing at all. I'd like to have a cooling/heating system that will work for boondocking on solar, so a regular A/C isn't a good option. Looking at mini-splits. Thoughts?