When not in use, our rig is stored outside, and here in Vegas temp gets up over 100+ degrees in summer.
We have a 50amp hookup, so I leave the two AC units on with thermostat set at 89.
Since our humidity is very low, I set a couple of bowls of water in the coach and replenish water once a week or so.
Jim & SherrySeward
2000 Residency 3790 v10 w/tags 5 Star tune & Banks system Suzuki XL7 toad