This is EXACTLY why we added the Onan
EC-30W (wireless autostart) if the interior of the coach gets too hot or too cold (user defined) and there is a loss of Shore Power, the generator will automatically start.
We travel with our Old English Sheep Dog & we want to make sure she's comfortable & safe. If the camp ground has a loss of shore power we know the generator will take care of her.
We have the added benefit (w/ the EC-30W) of ensuring the batteries don't get too low (the generator will automatically start, in such a condition to charge the batteries (if there is no shore power)).