This Champion portable generator was utilized for backup power during outages in Kirkland, WA.
During a long outage, the owners went to refuel the generator and the generator was hot enough to ignite the gasoline. Attempts to put out the flames were futile and all they were able to do was pull it far enough away from the building to prevent the fire from spreading.
An automatic standby generator is a valid option to prevent circumstances like these. No need to refuel since an automatic generator runs from the natural gas or liquid propane on site.