150 LPD ETC GLC Varistor Solar Water Heater with 10 years warranty

The Varistor 150 LPD ETC Solar Water Heater is an evacuated tube system with a glass-coated tank, sized for a family of 3 to 4, carrying a 10-year tank warranty. It uses 12 tubes (2100mm each) to heat a 150 litre tank rated to handle water hardness up to 2000 ppm. It is a gravity-fed, non-pressurized system.

Built for hard water the 2000 ppm rating. This is the number that decides the purchase in most of South India. The inner tank is galvanised iron with a glass coating, and that coating is a physical barrier between your water and the metal. On borewell supply, where mineral-heavy water corrodes an ordinary tank in three to four years, the 2000 ppm rating is what supports a 10-year tank warranty. Among the water heaters we stock, only Sudarshan Saur's glass-lined range and Supreme's higher-rated units match or exceed it most V-Guard and Racold models handle 600 to 1000 ppm. If your water is genuinely hard, this rating is the specification that matters most.

Evacuated tube heating. The 12 evacuated tubes, each 2100mm long, hold a vacuum layer that traps heat like a thermos, so the system keeps producing on cold winter mornings and overcast monsoon days when a flat plate system slows. For a family of 3 to 4 bathing early, that keeps hot water available for everyone.

Compact footprint. This unit needs 8 feet by 5 feet of clear terrace space, suiting a normal residential rooftop.

On sizing, 150 litres serves 3 to 4 people. If you are five or more, step up to 200 LPD; two or three, the 100 LPD saves money.

The price includes transportation to your house, lifting to the terrace, and installation. You arrange the plumbing connection.

SolarClue is India's managed solar marketplace, and Varistor is our own brand we set the specification, we stock it, and we stand behind it directly. Our team confirms whether 150 LPD suits your family, whether your water hardness suits this tank, and whether your terrace and tank height work for a gravity-fed system, before you pay anything. You book with a token payment rather than the full amount upfront. Delivery, terrace lifting and installation are coordinated by us through verified partners. Compare the Varistor against Supreme, V-Guard, Sudarshan Saur and Racold on our platform we will tell you honestly which suits your water and budget, including when a branded unit is the better choice. Check the current solar water heater price and talk to our team for the installation timeline in your city.