OverviewThe furnace gives the player warmth, along with the Campfire and Big Fire. Unlike the Campfire and Big Fire, the Furnace does not disappear after a certain time; players can add wood to it to restart the fire.
The furnace behaves like a one-way-chest, players can put any amount of wood into its inventory, but it is not possible to take it out again. As long as the Furnace contains at least 1 wood, it will give out heat. However, 1 wood will "burn" every 6 seconds, and disappears from the furnace's inventory. When empty, it only acts as a wall, being impassable.
For each night, around 48 wood gets used as fuel in the furnace. Try not to dump all of the wood, or it will most likely get wasted during daytime. When afk, make sure that you are in the range of your furnace.
More Information150 Wood, 100 Stone, and 50 Gold are required to craft a furnace.