Simple 80 Furnace Smelter! Giant Furnace System! Minecraft

In this video I show how to build a powerful but reasonably simple 80 furnace smelter, it can smelt 28800 items per hour and can be expanded easily if that's not enought for you. What makes it quite simple is it uses the time a minecart takes to travel 80 blocks as the timer for fueling the furnaces every 10 seconds.
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