- Main article: Redstone Signal Inverter Upgrade
Redstone Signal Inverter Upgrades invert the redstone signal a machine is receiving, and are crafted like so:
Redstone Signal Inverter Upgrades can be added to invert the redstone signal a machine is receiving. Although for most machines this provides no benefit at all, but for the Induction Furnace or the Thermal Centrifuge, this means they retain the heat generated from processing items, meaning they will run faster as they are hotter. Adding more than 1 will not give any additional benefits.