The Rinnai 400L 3.6kw Hotflo Electric Hard Water Twin Element Storage System is a reliable and efficient solution for your hot water needs. With its twin element feature, this system ensures that your water is heated quickly and evenly. The vitreous enamel lined steel cylinder stores the water, while the thermostatically controlled heating elements do the job of heating it. The bottom heating element heats the entire contents of the cylinder, while the top heating element, also known as the booster, operates during high demand periods to heat the upper portion of the cylinder. This system is designed to handle hard water, making it suitable for areas with water that contains high mineral content. With a generous capacity of 400 liters, you can count on having enough hot water for your household needs. Whether it's for showers, laundry, or washing dishes, this storage system has got you covered. Trust Rinnai to deliver reliable performance and energy efficiency. Upgrade your hot water system with the Rinnai 400L 3.6kw Hotflo Electric Hard Water Twin Element Storage System.