RSJ-N15 is a unitary heat pump water heater, whole body is using high press stamp and argon tungsten-arc welding technology for production, breaking down the traditional circular body form, simplicity and fashion, thanks to the matt white finish. It is better to integrate the product into the environment and also adapt the contemporary home decoration, all new built-in controller user interface, it is very simple to use and read. It is also available for your iPhone, iPad and PC to control your heater remotely and also it will learn your using habit automatically and recommend you the most energy saving way to use.