I have the switchover box outside and the gas generator in a shed between the box and the house. 5500 watts get me all I need and even runs the 220v well pump. I don't worry about the electronics and have never had a problem (I do have very good surge protectors in line, however). Enough juice for the fridge, freezer, coffee maker, microwave, lights, well, and even a small space heater if necessary. No to furnace, range, hot water. Generator, cart, battery, power cord.....about $1000. Love it!!