About Solar Water Heater

A Solar Water Heater is a device used to convert sunlight into heat energy for water heating. The Solar Water Heating system consists of a horizontal tank with attached solar collectors. The hot water is stored in a tank which is insulated and it can be accessed at any time. Solar Water Heater is a cost effective way to produce hot water for domestic use. The Solar Water Heating systems have limited maintenance costs and fuel (solar energy) is unlimited, which makes it highly efficient and hassle-free.

Solar Water Heater heats up water up to 55°C to 70°C which is an ideal temperature for household purpose including bathing and kitchen use. Some of the solar water systems come with inbuilt electric heating systems for use on cloudy days. Hence these solar water heating systems can be used for any weather condition.

Solar Water Heater was in use even before 1900, back then a black painted tank would be mounted on top of the roof and water used to be stored inside it and it would be heated up as black colour absorbs sunlight. Now, technology is improved and there have been various improvements in solar water heating systems. The solar thermal collector absorbs sunlight very quickly and the water inside the tank heats up very soon.

Solar water heaters are also used for commercial purposes. These are very advanced and they consist of huge tanks and thermal collectors. Previously the government used to offer various subsidies for the installation of Solar Water Heating Systems, promoting their use as they help in preserving the environment and decreasing carbon footprint. This had decreased the solar water price in India.

Hence, installing a Solar Water Heater for home can come across as a great investment in the long term. Nuetech solar has got you covered with its range of solar heating systems.

Solar water heater price

When it comes to pricing, solar water heating systems require a high initial investment, but the savings it generates in the long term makes it one of the cheapest and most cost effective water heating solutions. Even the maintenance charges are at their lowest.

On average, the Solar Water Heater price in India ranges from Rs. 13,000 to 1,09,990 with respect to its type (i.e. ETC or FPC), its capacity and also the brand. The capacity of the solar water heater price starts from 100 litres - 500 litres for home use, for commercial purpose 1000 litres , 5000 litres and also customization available. Nuetech solar provides various range of solar heating solutions and you can get the best solar water heater price in Bangalore.

How does a solar water heater work?

Solar water heaters come in a wide range of designs, shapes and sizes which consist of a thermal collector and an insulated water storage tank. The solar water heaters are designed to use the sun’s thermal energy to heat the water inside the insulated tank in the system. The water storage tank continuously circulates water through the collectors by relying on the natural flow of water occurring due to the difference in the specific gravity of hold and cold water. There is no need for electricity and the whole system is maintenance-free. The only downside of this system is that the temperature control system controlled, however, it can be managed by mixing cold water.

The thermal collector captures and retains heat from the sun and uses it to heat the water. Solar water heater working is not too complex. The solar water heating principle governs the technology behind its working.

First one is that any hot object will ultimately return to thermal equilibrium due to the heat loss occurring from conduction, convection and radiation. The efficiency is directly related to heat lost from the surface of the collector. Convection and radiation are important sources of heat loss. The thermal insulation is being used to slow down the heat loss process from a hot object.
The second principle is that heat is lost rapidly if there is a larger difference between a hot object and the environment. The heat loss is predominantly being governed by the thermal gradient between the surface of the collector and the ambient temperature. Conduction, convection and radiation occur more rapidly over large thermal gradients. These are the two solar water heating principles.

Direct systems circulate water through the solar collectors where it is being heated up by the sun. This heated water is then stored or is being used directly. This type of system is used in normal climatic conditions.The closed-loop or indirect systems use a non-freezing liquid for transferring heat from the sun to water stored in the insulated water storage tank. The thermal energy from the sun will heat up the fluid in the solar collectors, which then passes through a heat exchanger placed in the insulated storage tank, transferring the heat to the water. Then, the non-freezing fluid will cycle back to the collectors. These systems are mostly used in cold climatic conditions. Active or forced circulation systems make use of electric pumps, valves and controllers to move the water from the collectors to the storage tanks.Passive systems do not require any pumps, the water is moved by natural convection from the collectors to the storage tank. So this clears your question of how does solar water heater work.

Types of solar water heater

Nuetech solar systems offer two types of solar water heaters, they are called Evacuated Tube Collectors (ETC)& Flat Plate Collectors (FPC). Buy a solar water heater according to your requirements.

ETCs are the most efficient collectors available in the market. The evacuated tube in principle is very similar to a thermos. The water or heat transfer fluid is stored in a glass or a metal tube which is surrounded by a larger glass tube. Since the space between them is a vacuum there is minimal heat loss. The tubes can be replaced individually whenever needed. Flat Plate Collectors can be twice as expensive as Evacuated Tube Collectors. first company in India to bring ETC model is Nuetech

FPCs typically consist of copper tubes which are fitted to flat absorber plates. A series of parallel tubes are connected at their ends by two pipes, i.e. the inlet and outlet manifolds. The assembly is placed within an insulated box which is covered by tempered glass. An average flat plate collector can contain approximately 150 litres of water. Having two such collectors will provide enough hot water for a family of four. Both of them work on the same solar water working principle.

Installation and Maintenance of Solar Water Heater System

The installation of a solar water heater on your house depends on multiple factors which include the climatic conditions, space available for installation, local building code requirements and also the safety issues. It is best to have a qualified technician to install your solar water heating system.
Nuetech solar systems come with hassle-free maintenance. Post-installation, some type of maintenance is required to keep it running smoothly and hassle-free. The passive systems may not require much maintenance but active solar systems do require some amount of regular maintenance. In case of dry weather conditions, the glazing has to be regularly cleaned since there is no rain to rinse it away naturally. Certain simple systems require very little maintenance every 3-5 years. It is advisable to get the maintenance done by a qualified solar technician.

Nuetech solar systems come with hassle-free maintenance. Post-installation, some type of maintenance is required to keep it running smoothly and hassle-free. The passive systems may not require much maintenance but active solar systems do require some amount of regular maintenance. In case of dry weather conditions, the glazing has to be regularly cleaned since there is no rain to rinse it away naturally. Certain simple systems require very little maintenance every 3-5 years. It is advisable to get the maintenance done by a qualified solar technician.

Why Solar water heater?

Installing solar water heating systems is a smart investment to save costs on heating water. Solar energy is a renewable form of energy and it is practically unlimited and free to use. Even though a solar water heater for home requires a high initial investment, the savings it generates in the long term will easily help to make double the amount invested in its installation.

Installing solar water heating systems is a smart investment to save costs on heating water. Solar energy is a renewable form of energy and it is practically unlimited and free to use. Even though a solar water heater for home requires a high initial investment, the savings it generates in the long term will easily help to make double the amount invested in its installation.

Our Services

General Service
  • For 1st one year General Service is free includes tube, collector and tank clean.
  • Checking connection of L type hose pipe, Assistant tank and tank leakage is not chargeable up to one year.
  • Tubes breakage chargeable.
Chemical Service
  • Acid service chargeable for both Tube collectors, Flat plate collectors and tank for all time.
  • Transportation charges applicable for reboring or drilling collectors.
  • After One year visiting charges are applicable.

FAQ of Solar water heater

Evacuated Tube Collector or ETC, is a type of solar water heater where the tubes which absorb the energy from the sun are used to heat the water in it.
The solar water heater is typically installed on rooftops of houses, but they can also be installed at ground level. It should be ensured that adequate sunlight is reaching the collectors.
There is no need to install solar panels in a solar water heater. The water is heated with collectors, these absorb the sunlight and heat the water from it which comes within the system of solar water heaters.
The solar water heater is available with the following capacities:
For domestic :
  • 100, 150, 200, 250, 300, 500 litre solar water heater
For commercial :
  • 1000, 2000, 5000 litre solar water heater (Customization available)
Solar water heater cost starts from Rs. 13,000 and goes all the way up to 1,09,990. Nuetech offers the best price for solar water heaters in Bangalore India.
No, solar water heaters require sunlight. However hot water is already stored in the solar water tank and it can be used in the night as well.
No, the government used to provide various subsidies for the installation of solar water heaters at your home. Presently it has stopped offering subsidies.
Flat Plate Collector or FPC, is a type of solar water heater where the energy from the sun is captured and is served through copper tubes placed inside it
Nuetech Solar water heaters comes with inbuilt electrical heating coil. Hence it can be used in any climatic conditions.
To choose a suitable capacity solar water for your home you need to calculate your water consumption and choose the right one that meets the requirement.
The space required to install a solar water heater depends on the capacity. Installing a 100-litre solar water heater requires 15 sq.ft of space and approximately 40 - 45 sq.ft of space is required for a 300-litre solar water heater.
Water remains hot inside the solar water heater for approx 48 hours.
The estimated lifespan of a solar water heater is 15-20 years, provided that it is maintained regularly.
You can contact us to buy a solar water heater. Nuetech provides the best solar water heater for houses and commercial requirements.
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