I've been reading a little about Rocket Stoves (or Rocket Mass Heaters), http://www.richsoil.com/rocket-stove-mass-heater.jsp and they look pretty interesting to me. Wondering if anyone has every built and used one up here in AK. I really have to minimize the amount of wood I'll have to cut, but I want to make sure it will keep the cabin warm enough. The cabin is started, but not finished yet. It's logs (only 6"), one-story 24' x 36'. I remember that Chuck was thinking about doing that in the new cabin before he died, but he didn't tell me what he'd decided. I had forgotten about these Rocket Stoves, and had just about decided to get a Blaze King Princess, but that will be spendy. I know the Blaze Kings are a lot more efficient than most wood stoves, but if these rocket stoves do even close to what they say, I'll burn a lot less wood with that than I would with a Blaze King. What do you think?