Bought an old farm house around 3000 sqft that is off the ground and looking for an efficient way to heat it. The ceilings in the house are 12 ft and the hall way is 40 ft long with bedrooms on each side kitchen sits in rear of house. We first started looking at fireplace inserts one for the living room and one for the kitchen but because of the design of the house not really sure if that will be enough to keep the entire house warm. Have now started looking at outside woodburning furnaces. If anyone has gone from fireplace to woodburning furnace for heating with good results would like to hear your comments.