Due to EPA regulations, a LOT of the woodburning stoves on the market will have to be withdrawn from public sale in 2016.
You've still got about a month left if you want/need one. Even if you don't need it yet, get it now, and worrying about installing it when the power goes out and the propane runs low.
A small one goes for just a bit over a hundred bucks at my local farm supply store. They're closing them out, for obvious reasons.
I’ve converted old 30 gallon propane tanks to wood burners by cutting a couple of holes and sticking a pipe in the top.
The EPA can’t stop ingenuity in America. Lots of videos on how to do this. I got my tank at the local dump for free.