The Anu Solar 300 LPD FPC Non-Pressure Solar Water Heater is a flat plate collector system sized for a family of five to seven, using three collector panels to heat a 300 litre tank. It is gravity-fed, with a 3.5 mm galvanised iron tank, a sacrificial anode rod rated to 600 ppm water hardness, and a 5-year warranty on both tank and panels.
A 300 LPD solar water heater is the size most larger households settle on, and this is the flat plate model at that capacity. Three panels absorb sunlight across their full surface and heat water directly into the tank, so five to seven people have hot water through the morning without adding to the electricity bill. As a solar water heater for home use at this size, it covers a full family's routine rather than one or two bathrooms.
This is a non-pressurized solar water heater, which means it runs on gravity from your overhead tank. Simpler, cheaper, nothing to pump, nothing to fail. That also makes it the wrong product for some homes: if you have a booster pump on your terrace, this model is not for you and you need the pressurized 300 LPD instead. It is better to know that now than when the installer is standing on your roof.
The flat plate collectors are the older, simpler technology, and for most homes they still make sense. An FPC solar water heater absorbs sunlight across the full panel surface and performs reliably in strong direct sun, lasting fifteen years or more with almost no maintenance. There is no glass tube to crack. The honest tradeoff is that on cold early mornings and through heavy overcast, a flat plate solar water heater warms more slowly than an evacuated tube system. If your household bathes early in winter, ETC suits you better. If you bathe later in the day, FPC gives you the same hot water for less.
The tank is built heavy rather than coated. Galvanised iron at 3.5 mm thickness, with a sacrificial anode rod fitted to fight hard water up to 600 ppm. The anode rod corrodes so the tank does not, and it can be replaced during servicing. The outer tank is galvanised and powder coated to survive years of sun and rain.
One thing to be straight about: 600 ppm is the ceiling. If your borewell water runs harder than that, and much of India's does, Anu's glass-lined ETC range is rated to 2000 ppm and will outlast this tank. Tell our team what you know about your supply and we will tell you which one you actually need. Pointing you to the right tank costs us a sale today and saves you a replacement in four years.
Three things to confirm before ordering. Your terrace needs at least 9 feet by 10 feet of clear, unshaded space, and three flat plate panels take a large footprint, so measure it properly rather than estimating. Your overhead tank or Sintex must sit at least 6 feet above terrace level, since this system runs on gravity. And confirm you do not have a booster pump on the terrace. An electrical backup coil is available separately for cloudy stretches, ask our team whether your usage pattern needs one.
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 300 LPD suits your household, whether FPC or ETC suits your bathing hours, and whether your water hardness suits a 600 ppm tank, 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 Anu Solar warranty support afterwards. Check the current Anu Solar water heater price and solar water heater 300 ltr price on our platform, and talk to our team for the installation timeline in your city.
