Discreet and quiet Fan Heater. New in Box. Half the cost of that at the electric store.1000W. Made to install between joists, recessed or outside the wall can work, vertical or horizontally. Used anywhere such as stairwell, washrooms, shed, cottage, entryway, corridor, office. Compatible for both 240 and 120 V. Description, "Wall heaters are more energy efficient than their central air counterparts rated 90 percent annual fuel utilization efficiency (AFUE)."