We don't dry camp either, but 13 or so is what I've heard. Guess it depends on the weather as well.
We had 3 trailers before the FR MH, all had the typical RV fridge. The residential fridge has been great. Ice through the door, yes. All that freezer space!!! No more cramming stuff in every corner. There are 4 of us when we travel, now everyone gets what they want.
2015 Georgetown Forest River 351DS MH
2008 Keystone Cougar 293SAB 5th Wheel
2007 Jay Flight 30.5RLS 5th Wheel
2006 Jay Flight 29BHS TT