The third rectangular building (sizes: length 11.50 metres; width 3 metres; maximum height 1.65 metres), discovered in 2010, and was interpreted as a megaron temple in disuse.

Known also as room 16, it is included in the dwelling complex insula 1 (fig. 1).

Fig. 1 - Plans of insula 1. Top, room 16 (from FADDA 2012, fig. 53, p. 40).

The top part of the walls are made from large local stone blocks placed on underlying base rows that are smaller in size.

On the right-hand side, there is still a stretch of the original entrance, while there is no sign of the stone doors that probably divided the interior space in the original layout. The original granite slab floor can still be seen to the right, which was exposed to the fire, while on the left, there is a large layer of beaten red clay, distinguished by alternating levels of burned clay, due to the rebuilding of the floor and the arrangement of small ovens around the walls (fig. 2).

Fig. 2 - Interior of the megaron 3, flooring and walls (photo by E. Atzeni).

At the beginning of the Iron Age, in the left hand corner of the rear wall, a fireplace oven was built in with rows of local stone. It was used for working metal and was square-shaped with rounded corners (size: width 1.80 metres; maximum height 0.90 metres). The combustion chamber is fed from an opening at the bottom right hand side. This sent the high temperatures in the direction of the side wall, thus isolating the rest of the room from the direct heat (fig. 3).

Fig. 3 - Megaron 3 (photo by Unicity S.p.A.).

Metal was worked on the bottom of the ancient oven, each time renewing the baked-clay bottom; on the northwest side, in an open space, slightly concave, there were the bellow nozzles that fed the fire (fig. 4).

Fig. 4 - Fireplace-oven (from FADDA 2012, fig. 51, p. 36).