Especially after the weekend when my heater when out, it seemed like a backup heater would be a good plan, especially in my climate. On the recommendation of the gentleman who fixed my heater, I purchased this model. It's a Camco Wave 6 radiant heater. It burns propane, but without a flame. I don't know enough about the catalytic process to tell you more than that. But we installed it on my wall yesterday and it seems to be working quite well.
It does not use any electricity, a serious advantage over my other heater. And the radiant heat, while not quite so even as the other heater, feels really nice. Kinda like the feeling of sitting in front of a wood stove. My little brown chair is right across the room and sitting in it to read with my feet propped in front of this is really nice!
Left on medium, it kept my house at 65 all night long with the outside temp around 7 degrees. And since it does not use any electricity, this kept my other heater from kicking on and therefore my house used very little power in the last day. I think this is going to be a very good thing for my off grid setup. As I still have the other one, they can also back each other up and I'm much less likely to spend a weekend without heat. We'll see if it changes with longer term use, but so far I am really liking this little thing.