Ours is the 5,000 btu unit. It has settings for cool, heat, fan, and de-humidifying. A remote control device operates the unit, but it will not work from inside the camper because the control panel is on the opposite side from the ducts. We bought the optional wired thermostat for an extra $40 and it mounts inside.
We are very pleased with this product. It kept us warm when it was in the low 30s in Colorado. After sunset in Oklahoma, it cooled us so much we had to turn it off. In 90 plus degrees at mid-day however, when we were parked in full sun, it didn't get cold inside. Still, it cooled off enough for an afternoon nap.
This unit is very heavy, 71 pounds, and moving it from the trunk of my car is a chore.