One of my pre-cool weather projects is going to be the installation of a 20A inlet, run through a Circuit breaker/switch panel and two or three additional outlets in the trailer for it to feed. The ceramic heaters do help, and anything they do will cause you to use less propane and will cost you less money. I'm already paying for the campsite, so the more I can run on their nickel, the better it is. I've found out that the extra inlet is really necessary. We like to run the water heater on electric as well as the fridge, add to that the coffee maker and the occasional microwave and hair dryer, and you spend a lot of time resetting breakers.
