Fuel Burner
The fuel burner turns fuel items (Coal, Wood, etc.) into heat by burning them and containg the heat via the isolation.
The amount of heat generated depends on how many items the fuel item can process. One items worth of fuel is equal to 200 heat. (This is adjustable in the config by changing fuelBurner.heatPerFuel in the balance section of the config file)
The fuel burner has an internal buffer capable of storing 1600 heat (1 piece of coal). This buffer can output at a rate of 2 heat per tick, but fuel is only consumed at a rate of 1 fuel per tick.
The interface containes 4 slots fuel so you wont have to refill all the time. The bar in the side shows how much heat is stored in the furnace.