I didn't want to put a heater in my little 10' camper that I built for re-enactments, because I was dismayed by the number of parts and putting it all together.
Took a chance on this all-in-one, and am very glad I did. It runs off of the 12v outlet in my Jackery battery, it vents to the outside so I don't worry about dying in my sleep! and it fits easily in the camper, right next to the Vevor refrigerator I ran all this summer.