The Nuetech NP Digital 220 LPD Solar Water Heater is an evacuated tube system sized for a family of 4 to 5, using 26 tubes to heat a 220 litre tank. The inner tank is marine-coated steel with a blue glass-line coating rated to handle water hardness up to 2000 ppm, and it carries a 10-year tank warranty. It is a gravity-fed, non-pressurized system.
The number that decides this purchase is 2000 ppm. That is the water hardness this tank is rated for, and it is the difference between a heater that lasts and one that corrodes early. The inner tank is marine-coated steel finished with a blue glass-line coating at 1.6 mm a physical barrier between your water and the metal. On borewell supply, where mineral-heavy water eats through an ordinary tank in three to four years, that coating is why this unit carries a 10-year tank warranty rather than the shorter cover budget units offer. If you are choosing a solar water heater for hard water, this is the specification that matters most.
The 26 evacuated tubes do the heating. Each tube holds a vacuum layer that traps heat the way a thermos does, so an evacuated tube solar water heater keeps producing on cold winter mornings and through overcast monsoon days, when a flat plate system slows down. For a family bathing early, that is the difference between everyone getting hot water and the last person not.
A compact footprint. This unit needs only 8 feet by 6 feet of clear terrace space less than a comparable flat plate system at this capacity, which matters on a smaller 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, 220 litres serves 4 to 5 people. If you are six or more, look at a 300 LPD; if you are two or three, a smaller unit saves money without costing comfort.
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 220 LPD suits your household, 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 Nuetech warranty support afterwards. Compare the Nuetech NP Digital 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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