As promised, here are some photos of the new fridge. I did not think to take any yesterday while we were installing it--being sick makes you not think clearly. Basically, however, there is a gas line attached to the back instead of an electric cord. There is also a place for 4 batteries to run the lights. I'm pretty sure batteries are not cheaper than electricity for the lights, and there seems to be a place to hook an electrical cord for the lights but there was nothing in the instructions about that.
The freezer compartment is really deep. It holds more than my old one.
See? Room to spare. The old one was crammed full and had the same things in it. (And yes, that's a book on top. I got it free at a yard sale because it had gotten wet. It's a bird book so how could I say no? You can save wet books by freeze-drying them. Just put them in the freezer for a week or so, take them out and let them thaw, then repeat the process until the book is dry. I did learn something in library school!)
You can read how it works here. The flame is about the size of a pilot light so it produces little heat, and uses very little gas. I wish I'd taken photos before we got this thing in place so you could see a little more.
It's all settled in now, I think--we'll see how it does over the next few days. So far, so good. And a nice little side benefit: I have a clean fridge! I sure wouldn't think of showing you the inside of the old one.