Originally Posted by meganjoe
Thanks .. but I don't understand why I'm seeing such a wide range of btu's in similar sized rv's..
You can not really have to much A/C with a travel trailer just by the construction and insulation. If you were going to size an A/C for a house you would be looking at 300 sq ft per ton. Trailer A/C are normally 13,000 to 15,000 Btu's. In Florida at that time of year the humidity is down. I would still get the biggest, and let the fan run and let the unit compressor cycle to your set temp.