The Anu Solar 500 LPD FPC Pressurized Solar Water Heater is a flat plate collector system rated to 8 bar, built for homes and small establishments running a booster pump. Four collector panels heat a 500 litre tank, sized for 10 to 15 people, 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.
If there is a booster pump on your terrace, this is the model you need, and most of the cheaper 500 LPD options you have been comparing will not work in your home. That single fact decides this purchase. Rated to 8 bar, this system holds up against the force of a pressure pump and delivers hot water at the same pressure as the rest of your plumbing, so the shower stays strong when you switch from cold to hot. A gravity-fed heater in a pressurized home either underperforms from day one or fails outright, and by then it is bolted to your roof.
A 500 LPD solar water heater is not a small-family decision. Four panels feeding a 500 litre tank is the capacity for a joint family, a PG, a hostel, or a guest house where 10 to 15 people want hot water inside the same two-hour window. This is a pressurized solar water heater, so the tank does not depend on your overhead tank height, which is what makes it workable in buildings where gravity feed is not an option.
The flat plate collectors are the older, simpler technology, and for most of India they still make sense. FPC 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, an FPC solar water heater warms more slowly than an evacuated tube system.
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 monsoon.
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.
Two things to confirm before ordering. Your terrace needs at least 9 feet by 13 feet of clear, unshaded space, and four flat plate panels take a serious footprint, so measure it properly rather than estimating. And confirm you genuinely have a booster pump, because if your system runs on gravity from an overhead tank, the non-pressurized 500 LPD is the correct and cheaper choice. An electrical backup coil is available separately for cloudy stretches.
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 your pressure setup matches this model, whether 500 LPD suits your household or establishment, 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 pressurized solar water heater price on our platform, and talk to our team for the solar water heater 500 ltr price and installation timeline in your city.
