Bosch Highflow Electric Hot Water Heaters units are a very reliable hot water system, with there being one to suit each individual’s requirement. The Bosch range comes in 3 different sizes (17, 20 and 26 Litres per minute). Bosch Electric Highflow water heaters are outdoor units, which are compact in design, space-saving and easy to install. Every Bosch Highflow model comes with anti-frost (for cold winter), can be installed with up to 4 optional temperature controllers and are available in Natural or LP Gas. They are also solar compatible without needing a solar transfer valve. All units include a 10 year heat exchanger warranty and a 3 year parts and labour warranty.