Jason built this rocket stove yesterday. He still needs to add some inner insulation and do some finishing touches, but I think it's pretty awesome already.
We are planning to use it for maple syrup time, so that we can boil down the sap using this stove instead of a big outdoor fire, as rocket stoves are immensely efficient when it comes to fuel usage, using just a fractional amount of wood in comparison to any other traditional wood-burning method or device. It's amazing, really. One day I hope we can expand on this idea and build a rocket mass heater directly into our home. That would be just so wonderful. I do love to be warm (: