The owners installed this outdoor wood furnace a few years ago, and we didn't take advantage of it last winter, we didn't want to buy a bunch of wood and then move. Of course with our perfect 20/20 vision we see how silly that was. So this winter to help beat the cost of propane we made the leap and bought 10 cords of wood. If we have to stay in the house much past January we will need more, but at least this is a good start. You throw wood in here occasionally and it heats the water for the heat, and all your hot water needs, so now I will just use propane for dryer and cooking. The bad part is that I will have to go add wood, I guess DB and I will have a nice trail thru the snow to the wood and furnace. The last picture is from my porch so you can see it isn't too far.