I am thinking of installing an indoor wood furnace, Hot Blast Model, to use in the event of a power outage or alternative heat source to offset our utility bills. Our home is located in the Midwest so our winters are not severe and do not last as long as some. We live on heavily wooded acreage and our home is all electric. I do have a 10000 watt backup generator but the whole house heat is electric and would take too much to run off of a generator for an extended period of time. We do not have propane and installing that is not an option for us. My question is has anyone installed any model of a wood furnace that has the two 8 inch pipes that go into the central duct work and would you know if I can use this system with duct work that has insulation inside of it. Also how have they worked, if you do have one, are they reliable and how hard are they to install for an average to above average do it yourselfer. Thank you!