Well, I guess Navigator should get a'hold of some of these and generate a little stove Mfr. feedback. Its hard to contemplate BUYING fuel but for a super long burn they might make sense at times if used sparingly.
The Little COD install mentioned above has not experienced and "run away" fires and it is recommended that all installs use a chimney pipe damper to regulate flow through stove. Even with good old 2x4's you'd run through them quite rapidly w/o a damper installed.
Here's the log mfr's website.
http://www.northidahoenergylogs.com/
Just spoke with them & logs are 100% wood.
NO WAX!
They are happy to provide info on local distributors, etc.