Off topic ... but just as a side note: We have to run our MW using our built-in Onan generator - as we don't have a high power inverter on board.
HOWEVER ... I am concerned about the wear and tear on the Onan with a lot of short-run startups and shutdowns. In general, isn't this supposed to be very hard on a gasoline engine (at the very least hard on the starter and it's gears)? Should this be a concern with Onan generators? The Onan manual says to run it, after being started, for at least one minute before placing a load on it and to run it, after removing a load, for at least one minute before shutting it off. We violate this rule of thumb all the time whenever using the MW for a few minutes here and there.