Wallace said:I am definetely getting 8 hour burns...and am happy with the heat production as well. It is funny you mentioned the over excited thingonthe wood. I had my wood 2 weeks prior to putting the stove in. Most of the splits are 16-18"...my next cord is gonna be about half 15" and half 20" for east west loadingFullCompliment said:I only get 5-6 hours although I seem to err on the side of too open damper-wise. Something about dirty glass just irritates me. Keep in mind the absolute best wood I have to burn is tamarack (no hardwoods here). One problem with this stove: If you were overly excited and got your wood supply before buying or even picking out your stove, you most likely have a bunch of 16-18" splits. I think that, in order to optimize Oslo performance, it'd be better to have 20-22" wood to fill the firebox completely.
I wouldn't bother with the different sizes next year . . . the Oslo does pretty well just loading east-west since it is more of a rectangular shaped firebox. I cut my wood 18-20 inches long on average . . .