So we have the 2016 sandpiper, it came with 2 ac units, 15000btu. One in the front living area which is over the truck bed, and one in the back master bedroom. We are currently in corpus christi, T...
I our 40' 3 slide, fifth wheel with 1 15,000 btu and 1 13,500 btu /C's, I can get and maintain our inside temp down to 70* when the outside temps is 112*-115* parked in a asphalt park with no trees in Tunica Ms. with both units cycling. We use the vent cushions. When our skylight inside dome cracked, and I replaced it, I painted the back side and installed R30 insulation in the attic void. This alone made a huge difference in both summer and winter camping.