The RUBINE Smart.Slim.Elegant (SSE) range of water heaters are equipped with the SMART DPDT (double pole, double thermostat) protection system and feature an extra SLIM profile with a touch of ELEGANT beauty. Whilst providing the ability to dispense enormous water volume, our heaters are also built to perform with whisper-quiet efficiency and feature Inverter Technology that offers up to 60% energy saving. The SSE series is aesthetically pleasing to give you a more pleasurable and protected showering experience.