There is a storage of wood in the outhouse for use in the fireplace in the living room and for the wood stove in the kitchen, and for the campfire outside.
It usually goes up to one bag of firewood per day during the cold season, otherwise less.
Since there is no one present at the cabin when there are no guests, visitors buy and take one bag per day you stay, from the shop Kiwi on your way to the cabin. This is how the landlord, in collaboration with guests, ensures that there are enough wood throughout the winter.