The tank of the high quality Wesen Inox Flat electric water heater has a 50 litre capacity and is made using the latest technology. The 50 litre unit is indirectly heated with a sheathed heating element that shields the heating element from contact with the water. The water heaters are very low in maintenance, reliable, durable and consume little energy. The Inox Flat water heater is one of the slimmest models on the market with depth of a mere 10.3.