The Rinnai Infinity continuous flow hot water system is designed for wall mounting and uses technology that replaces the need for bulky storage tanks. The innovative infinity heat exchanger design provides high capacity flow rates whilst ensuring near mains pressure so you get all the hot water you need, when you need it at flow rates that are not achievable using instantaneous electrical products. The 'internal wall mounting' Infinity 'i' range is designed for wall mounting inside a property.