It's been more than 20
below normal here the last couple days, and I've been loading the Dw and MIL's Buck 91 every 12 hrs.
I don't know what kind of wood you're burning, but the mighty Buck can go 12 hrs pretty easily for me even on a load of Black Cherry. Now that I've replaced all the gaskets and am able to cut the air further, I'm interested to see what it will do on loads of White Oak and Pignut Hickory. I may have to not fill the box full, just so I can load on a 12-hr schedule with enough room in the box for the next load.
BTW Jasper, feel free to post or PM me with any questions you may have about the Buck. It's an awesome, high-quality stove and will serve you well.