I don't think there is anyone here who would argue that a 2-man saw can keep up with a good chainsaw. However, if you are not as concerned about cords per hour there are advantages that a 2-man saw has over any chainsaw. From my own experience: 1 no need for earplugs 2 no need for eye protection 3 you can chat with the person while working 4 you can hear all the other critters in the woods while working 5 my back doesn't ache from stooping 6 aerobic workout eliminates the need for expensive YMCA memberships. 7 no need for chainsaw chaps 8 no chainsaw stink on your clothes 9 no breathing chainsaw exhaust I guess it comes down to the reasons why you heat with wood. For me, I don't heat with wood because I have to, I heat with wood because I want to. I try to choose hobbies that have a practical pay-off of some sort - but make no mistake about it - they are hobbies. That said I did get a chainsaw because my hope is to work fast to build up a supply of wood that is several years ahead of my burning and I thought to do that with a two-man saw would be unpleasant.