We added a Dometic Air Conditioner and replaced the Fan-Tastic Vent 4000R with a new one last week. After 5 years and 95,000 miles the fan was really on it’s last legs. We didn’t get a/c in the beginning but now our camping style has changed a bit and this will make the hot areas more comfortable. Sportsmobile West did the work which only took a few hours.
We can run it for short periods with the idle control engaged and the cooling set to low without being plugged in although we will have to do more testing to see what that does to the AGM battery.
The top is pretty much filled up with the 2 solar panels, the fan and the air-conditioner. It raises our height to 9-1/2 feet where before we were just over 9′.