This one is solar and wind
Never messed with the gas on my pup, because the fridge didn't work anyway. Got a small fan forced heater with a t stat that works well. Only been down to 34 degrees, so if it was gonna be colder than that, might get a second one.
I got a dorm fridge off of craigslist for 25 bucks. That's just for food, beverages stay in the cooler.
Don't know about where you are, but every time I go camping here in NC I ask the park people- Why don't they put an ice machine by the check in shack? One of the ones that looks like a small...