Features: 1) Water tank storage capacity: 150L, 200L, withstanding high pressure 2) Super insulated hot water tank, efficiently keep the water temperature stable 3) Intelligent control: preserves heat, temperature controlled automatically 4) Easy installation, can work in basements, outer wall, garages etc 5) Works all day: not affected by changes in the weather 6) Hot water output: 45-60°C 7) Energy saving: a) Heating efficiency: 350% b) Electric heater efficiency: 95% 8) Easy installation