Redstone Furnace (Thermal Expansion 3)

The Redstone Furnace is a furnace that uses BuildCraft energy Minecraft Joules to smelt ore. Some items such as food cost less energy to process in a powered furnace than they would in a traditional furnace.

Note that this is called a Powered Furnace in 1.5.2 and earlier.

Recipe
The Redstone Furnace is crafted with one Redstone, two Bricks, one Machine Frame, two Copper Ingots, and one Redstone Reception Coil.