Pressure water tank:central water supply, Automatic operation. Foshan Instant pressurized heat pump water heater features: 1. Special structure make it nice elegant, ... 50liter/people, output water45°C, 3-5 people could take shower one time. 6. Practical and comfortable: surrounding temperature 10 ... °C, can take shower after 20 seconds for first time power on. Pressurized water tank, can used for ...