Back slagging as shown in the photo simplifies slagging by eliminating the need to lift heavy slag from the melt or drag it through the pouring spout. The back slagging feature permits the furnace to typically tilt at 33˚ angle towards the rear. Tilting the furnace provides sufficient space above the deck for a portable hopper and makes it easy for the slag to be pulled through the rear spout into the hopper.