I am going to add a second AC unit to the travel trailer in the next month (as soon as we can get out of winter and into spring in MO! They are calling for snow here on Friday!
). I am looking at Dometic DuoTherm Units. The price difference is around $120.00 bucks so I might be answering my own question, but I am trying to decide between the 13.5 or the 15? I know from the factory on my models that when you add the second AC it is always a 13.5. Is there anything to be concerned about if I go bigger with the 15? I have 50Amp service already.
Note: I have a 39' park model.