I was thinking about a pellet boiler for my garage I am going to build either this summer or next. 30 x 60 x 16 with two zones. I am going to have in floor heat with four inches under the slab of insulation. I know already that my outside wood boiler will just eat the wood like it is nobody's business. I figured I would go through 20 full cords heating both and I am not interested about cutting that up every year. Just looking for now and will compare about updating to a more efficient outside stove or just running the outside stove to my house and a pellet boiler in my shop.