Heat, smoke and fuel consumption in a high mountain stállo-hut, northern Sweden - Experimental burning of fresh birch wood during winter

► Raw mountain birch function well as fuel in Sami huts during winter. ► Fuel consumption was 3.6 kg (dry weight) per hour. ► A functional fire made with uncloven raw birch requires all parts of a tree. ► Accumulated heat in a stone filled hearth have limited effect after fire. ► CO-level inside a hut covaries with the experienced amount of smoke.