i normally get 12 hours in the real cold but the other night it was -16 F (wind chill) and i got 20 hours..let me explain
i went out just to top up the furnace so i could sleep in..at 8:30 pm i went to top up the old brute and the draft fan was running so i shut it off so as to not force any smoke or sparks out the door when i opened it (always a good thing) i topped er up good thinking i can sleep in late (gonna have a planned headache in the morn) went back in the house and enjoyed my self, woke up at 8am and plugged in the kettle, an asprin and a coffee sounded good. then the little wife complaine that the house was not warming up much so her nagging sent me out in the cold to check (after i assured her the stove should be good yet) well i got to the stove, no noise (i'm thinking the fan aint running that means everything should be good) i looked at the temp gauge...OH MY GOD, 60 degrees what has happened..i open the door to see that not one bit of wood has burnt...DOH .i forgot to turn the blower fan on after topping up the wood..so from 8:30 pm till 8:30 am i burnt no wood..i turned on the blower and away she went..i didn't add wood till 4 pm..that was the longest i ever went in the cold weather on one fill but i am real sure i don't want to do it again! the little woman 1..dad 0, and a headache and more nagging (oh me)