Simple and efficient furnace system with separate fuel supply system. 25 furnace system. ~2.4 items/sec error at around 4:50. Build the repeater and block in the .<br>Tutorial of a industrial smelter/automatic furnace I made. Works perfectly in version 1.7 and should be future proof. In this automatic furnace you do not need to .<br>An automatic, self-refueling furnace system that cooks with 15 furnaces at the same time. World Download for this .<br>This tutorial is for 1.7.5 and up :D Ever come back from a caving run with stacks of iron ore to smelt? This baby will smelt them right up for you easily, efficiently .