Net-negative? Hard work has a lot of net positives. I spend hours cutting, hauling, splitting and stacking though this exercise is priceless. Scientist have discovered that "moving" is linked to living longer. So yes, going 100% wooding burning takes time, for me as well, but there are so many benefits. I also like communing with nature when I am out. I have about 55 acres of forest with a lot of trees dead, mostly dry, and off the ground. I also save about $300-$600/month on electric heating bills. I also take my son out with me, and often my wife. There is definitely a tradeoff. I also sharpen my chainsaw chains myself, very fast and cheap once your learn. Fuel and bar oil are not free. Overall a net positive for me.