Propane Generators

I had a propane Generac on a Lance camper I owned before my current trailer and found it to be very convenient. It did not seem to use a large amount of propane and best of all, since I live in SoCal, it could go from sea level to 9000 feet in altitude without having to do anything but push the start button. It was a XXXX"P" generator and designed from the factory for propane; maybe the conversion kits cause less efficiency? (just speculating). During winter shutdown and storage, I did not do anything like on the gasoline generator with draining the carb bowl and gas tank of gasoline. It seemed pretty forgiving when I would forget to run it monthly also; after a long period of sitting, it would fire up and power my A/C and anything else needed pretty much immediately. Just my experience.