I ran into this article about a stove replacement for a high cabin in the White Mountains of NH. The Randolph Mountain Club maintains a year round cabin with a caretaker just below treeline on Mt Adams north of Mt Washington. Unlike the more publicized AMC huts at high elevations, Gray Knob is staffed year round and the caretaker inevitably participates in many of the winter rescues in the northern presidentials. The hut is open to public on a first come first basis and is used by many winter climbers. The hut is heated in theory but in actuality the old stove had a padlock on the door to keep anyone except the caretaker from using it. Due to the tightness of the building and the large amount of ice and snow brought in by hikers, the camp is only heated to above freezing around supper time. If it is heated up significantly more, the ice and snow on the hikers gear melts and forms vapor that inevitably refreezes on and inside the walls. A majority of the wood is hauled up by helicopter so the woodstoves efficiency will help them save wood. The article starts on page 6. http://www.randolphmountainclub.org/newsletters/newsletter-winter-2012-2013.pdf This cabin is hidden in the woods to shelter it from winter weather, nearby they have another camp, Crag Camp that sits on the edge of ravine with incredible views and is equipped with a pump organ but no insulation. Folks also use this year round but its decidedly colder with no insulation or heat of any sort.