I am looking into getting a small woodstove as a "back-up" heat source for our modular home. I'd like to get a used one and not spend alot for new, any suggestions on Models I should look for? thanks. It will be the emergancy heater in case of power outages, etc. We had a woodstove years ago, still have the stone floor pad and heat resistant wallboard in place, along with access to the roof to place the piping in.