Of the many high capacity geysers out there in the market, the Activa Amazon 5 Star 25L water heater geyser is one of the best. It is suitable for everyone especially for those who are in a hurry. The material used in the geyser is top notch, which can last a few years. It has an anti-vacuum system, automatic thermostat, extra heavy heating element, also comes with magnesium anode for longer tank life. The product is sold with a warranty of 2 years on the tank and 1 year on electrical components.