AIM
Addicted to ArboristSite
My OWB burns about 12-13 cord a winter heating house and garage. Both stay 74° or so all winter. I for one would not go any other way than an OWB... For what it's worth.. Try to see the reality in the claims of some people with IWB's that heat a zillion sq ft on a wheelbarrow load per month.. They are better than OWB's no doubt but I have seen some rather unrealistic claims here.