Doesn't seem like you can fit a whole lot of wood in there under the baffle. Seems like only 5 or 6 split pieces stacked tightly. Then I need to crank open the damper to get them to burn because there's so little air space between them. I appreciate the advice though and I'll continue to keep trying things. I'd love to see anything orange in the box after 8 hours. I'm happy to hear that it's even a possibility. I'm going to try closing it down to about 10% tonight at bedtime. It's supposed to be 13 degrees tonight so I'd love to keep it alive through most of the night.