that Jotul Black Bear model..at least the one I bought in 1976, has me cutting 27" logs although it could take a couple inches longer. It burns from front to back, just like a cigar.
Only drawback is the smaller than some front door..can't load really big logs, 4"-6" across the ends is about max.
However, there is a hidden benefit..the top lid lifts off, admitting one to the smoke chamber (the smaller, second box on top). The stoves are made in Scandanavia and there they regularly use that area to smoke meat. More than once I or my son have lifted the lid and set a Correlle saucer in there with beef or venison and soon had some nice, smoked meat or jerky. Just remember to use the proper wood..cherry, maple, hickory etc.