We have a 2 month old 5th wheel. It has 2 AC's but in this South (and I do mean FAR South...literally will be in Pharr in a couple weeks currently in Houston)....these two just aren't cutting it. Am...
If you’re parking in direct sun, even with three it may not be enough. Wanderingaimlessly has good advice. Also any windows that have direct sunlight should be covered with Reflectix insulating material. If added some to any cabinet attached to an outside wall.