Don't know if this is the right forum, but here goes. I am getting ready to install a wood burning furnace. The house is 2,100 sf upstairs and 2,400 sf downstairs. Not too worried about heating the basement, but will put a nominal amount of heat down there for when I am working down there. I live in Maryland and the average temps are the following: January 31 degrees February 34 degrees March 43 degrees April 52 degrees November 45 degrees December 36 degrees My dad and I were talking about this today. I have about 2 cords cut, split, and stacked and have been telling him that I need around 4 cords. He is telling me that I am out of my mind and 2 should be plenty with 3 being overkill. Of course, I will be ecstatic if it turns out that I only need about 2 cords a year. Heck, I will be dancing a jig.