The Sudarshan Saur 150 LPD ETC Solar Water Heater is an evacuated tube system with a glass-lined-coated tank, sized for a family of 3 to 4, carrying a 10-year tank guarantee the longest in its class. It uses 12 tubes to heat a 150 litre tank rated to handle water hardness up to 2000 ppm. It is a gravity-fed, non-pressurized system.
The 20-year guarantee is the headline, and it is backed by the tank. Most solar water heaters cover the tank for 5 to 10 years; a few reach 15. Twenty years is the longest guarantee available, and only a genuinely durable tank supports it. The inner tank is glass-lined-coated at 2.5 mm thicker than most glass-lined tanks in this class putting a robust barrier between your water and the metal. Combined with a 2000 ppm hard-water rating, this is a heater built to last decades. If you are buying a solar water heater once and want it to outlast everything around it, the guarantee here is the reason to choose it.
Built for hard water. On borewell supply, where mineral-heavy water destroys an ordinary tank in three to four years, the 2000 ppm rating and glass-lined coating are what let this unit carry a 10-year guarantee where a plain tank would fail early. For a buyer choosing a solar water heater for hard water, this combination of hardness rating and guarantee length is as strong as the market offers.
Evacuated tube heating. The 12 tubes each hold a vacuum layer that traps heat like a thermos, so an evacuated tube solar water heater 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 when everyone needs it.
Compact footprint. This unit needs only 8 feet by 4.3 feet of clear terrace space suiting a compact or shared rooftop.
Two things to confirm before ordering. Your overhead tank or Sintex must sit at least 6 feet above terrace level, because this system runs on gravity. And if you have a booster pump on your terrace, this product is not for you - you need a pressurized model instead. Send our team a photo of your terrace and we will confirm before you spend anything.
On sizing, 150 litres serves 3 to 4 people. If you are five or more, step up to 200 LPD; if 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. 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, and we handle Sudarshan Saur guarantee support afterwards. Compare the Sudarshan Saur 150 LPD against Supreme, V-Guard, Anu and Racold on our platform, and check the current solar water heater price. Talk to our team for the installation timeline in your city.
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