It all depends on the size of the inverter and how it was set up. My Xantrex RS3000 has everything in the coach connected through it with thee exception of the 2 AC Units and Microwave which are placed in a sub-panel prior to the inverter so they can be operated off the generator. I run the refrigerator on propane when traveling or dry camping.
2007 Georgetown 370TS
aka - RAYNMKR