2nd AC

MY three cents: Before you purchase another unit, save a few $$$'s and do some duct work checking. Start out at the main unit that is tied into the duct work. you can do a search on this as well. At the main unit, sometimes the return air is circulating within the main area behind the filter. make sure it is sealed so the air is forced into the ducting. Use a good duct tape from your local hardware or home improvement place. Then once that is completed, remove the vent covers at all the places throughout the coach. you can use an electric fish tape with a small rag on it and some patience, and clean the duct work out. sometimes there is small pieces of foam, tape etc inside restricting the air flow into the other areas. Check the air flow volume once you get r all cleaned and sealed. You may be good to go. Our unit had a badly sealed return area as well as some tape that made it part way down the ducting. WE have perfect air flow into the bedroom and the whole coach with only the one unit. As far as cooling, we are able to keep our entire coach at about 85* on a 115* day. Of course we do use bubble aluminum stuff in the big windows to help insulate. Good Luck & Be Safe ! ! !