Nasgas Semi Instant Electric Geyser SEM-150Nasgas Semi Instant Electric Geyser SEM 150 The Nasgas SEM 150 Semi Instant Electric Geyser is a powerful and efficient water heater designed to provide a continuous supply of hot water for everyday use. Combining quick heating performance with advanced safety features, this geyser is perfect for homes that need reliable and energy efficient hot water solutions. With a maximum power of 2000 watts and operating on a 220V supply, the Nasgas SEM 150