6 Best ISI Marked Geysers(January 2026)Have A Comfortable And Safe Bath With These Top Options

Take a look at this water heater from Havells, which is designed to deliver convenience and sophistication at the same time while delivering a perfect performance. Holding a capacity of 5 litres, this geyser is suitable for a family of 3 to 4 members. Also, the heavy-duty heating element is found in this water heater for quick water heating, so that you don't have to wait for long. For a longer life, the rust and shock-proof outer body extends the life of this geyser, making it ideal to use it for a long run. Adding a special feature about this geyser is that it features an ISI mark, which ensures safety standards, which means you wont meet with any accident during the operation.

Check this water heater from Haier, which is designed for efficient and safe hot water supply. It features a glass-lined tank and a magnesium anode rod, which work together to prevent corrosion and extend the product's life. The high-pressure resistance makes it suitable for use in high-rise buildings. It includes a smart thermostat for precise temperature control and energy savings. The design also incorporates a safety valve to protect against excessive pressure and overheating. The wall-mounting design and compact dimensions aim for easy installation and space-saving. This model is built for durability and efficient performance.

Get your hands on this geyser from Crompton that offers energy-efficient storage with fast heating. Equipped with advanced 3-level safety features, this keeps the water heater protected from any electric shocks and automatically shuts off the functions in case there is any malfunction. Additionally, the ISI-marked nickel-coated element provides resistance against scale formation for better safety. Fitted with a specially designed magnesium mode, it prevents corrosion due to hard water quality and offers clean water. To keep the geyser rust-proof, its metallic body is powder-coated to build a skin. Featuring a smart design with a Standby cut-off, it consumes less electricity and performs efficiently without compromising on quality.

Experience the immediate supply of hot water with this 6-litre gas geyser from ACTIVA, which is made with an extra heavy pure copper burner for extra durability. Made with zero pressure with flame failure protection, this gas geyser is perfect for the home. Additionally, this gas geyser from ACTIVA is designed for utmost safety and is also suitable for the bathroom and kitchen at the same time. This water heater ensures careful consideration of durability, water resistance, ease of maintenance and aesthetic appeal. Whether you are ready for a bath or washing the dishes, this gas geyser ensures effective removal of dirt, grease and bacteria to ensure safe hot water for everyday baths. 

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Take a look at this 5-litre water heater from V-Guard, powered by a superior 3kW heating element with a copper sheath and high-grade magnesium. This water heater heats water in less time. Additionally, with a 4-layer safety feature, this geyser release valve for safer operation at high pressure. Marked with an ISI thermostat for cutting off the power supply, this water heater cuts off the power when the temperature exceeds 55 degrees. This Instant water heater maintains maximum heat retention with eco-friendly insulation, and also has a stylish colour which indicates the status of the heating level. Suitable for both kitchen and bathroom use, this V-Guard 5-litre geyser can solve a lot of problems during winter.

Made with the heating element of 99% copper, this geyser is corrosion-resistant and can run for 8 to 10 years. Additionally, the inner storage tank material is made from SS, which is corrosion-resistant and is used with hard water. This geyser is not suitable for a high-rise building, as the maximum pressure for the geyser tank is 30NM/q. Holding a capacity of 25L, this water heater thua geyser is ISI approved, which makes it a reliable option to use. This 25-litre water heater also comes equipped with a safety tip switch and an Incoloy heating element, which will provide you with fast-heated water.