I seem to get about 8 to 9 hrs sometimes 10 (warmer days)in oct nov and sometimes dec but in the cold monthe jan and feb I get about 6 or 7 hrs I have a air tight stove (knock off of a wood chuch )called a fire power 2150 something ele I learned is you can regulate how cold it gets in the house but not how hot it gets but I still love burning wood