The Redring WS7 3kW Water Heater is one of the UK\'s most popular 7 litre over sink water heater due to its excellent reliability and performance.  Due to their point-of-use installation these units also benefit from minimal standing heat loss, and when added to the fact that, because this heater is only 3kW, unlike instantaneous water heaters, it can be spurred off a ring main rather than requiring its own dedicated circuit and then it becomes clear why the Redring WS7 Water Heater has quickly become a firm favourite. Outlet Spout: 300mm