My first popup had a gravity heater that used only propane. I have not seen one in a long time. The generator and oil filled heater sounds interesting.
Be aware that the Buddy low oxygen sensor will shut the thing off at around 7000'.
Right now I am working on running a 12 volt to 110 converter to the battery charger, then have the battery run the 12v. outlet. My electric blanket will tank the rest.
