ChrisLS' Proposal is for a SAUNA and SMOKE HOUSE constructed with dirt-bags, wire and plaster. Near the Northern end of the pond, there is an old road grade connecting to the "Pond Road" at pipes intended to be installed as culverts.  This will become a turn-around and access for delivering firewood to the Sauna by truck.   The building envisioned is an arched tube about 4 meters wide & 15 meters long, oriented up the hill slope.  The main door, a few steps up from the pond, could remain open even while in use with a fire because fresh air is intended to come in at the low end and a door for cleaning at the high end normally remain sealed air-tight. bench terraces line one side of the room, under them is a crawl-space size tube through which the stove exhaust is drawn down by a fan.  An air-tight access hatch alows use of this tube for curing meat from outside at the up-hill (hot) end.  Fires are intended to be clean burning, so "Smokehouse" is merely a name familiar to the County for an "accessory structure".  In fact, I'd like to try having detectors for smoke and carbon monoxide in the tube wired to lights, rather than beep alarms, showing in the fire room how well it is burning.  If smoldering without attention for some minutes, it should finally sound a brief signal and turn off the fans, stopping the fire, due to being an air-tight stove.  The stove intake is ducted from the hottest high point in the room. This insures that any smoke accidentally released from improper fire tending will be vented first automatically, or manually by simply turning the flue fans up again.       The high through-put of air will make a fast-burning, hot, clean fire; and keep fresh air coming in for occupants. The heat will stratify in the Sweat room and in the smoke tube on the way out, making it very efficient, releasing only slightly warm air at one side of the low end. --Possibly passing the air through a water mister to remove accidental smoke.  Occupants may move to their desired level of heat.     I'd like to find a long stove that can take logs a meter long or more, so that the labor of cutting can be reduced.  An alternative to a stove that can be stopped by turning off the fans, is one that will alow continuous feeding in of tree parts.