Get yourself a nice high end wood stove! You will use the same amount or wood and get 100x the heat off of it. I have a High valley catylist stove. The wife resisted for a few years as she likes the looks of it and seeing it. Well this one has a glas door and you can see the fire. We use to heat the room barely to low 70s for 4 hours each day. NOw i can use a similar amount of wood and heat the house all day on that ame quantity of wood. The room can get well past 80 F in the dead of winter depending on what part of the house we open up to allow the heat to flow to. I have a large first floor, bout 2500sqft, not really an open plan either, we use 2 fans and sometimes the blowers on central units to distribute the heat. I figure i cut an easy $100/month off the cold months!