A solar water heater is a cost-effective and eco-friendly way of heating the water. It uses a solar thermal collector and converts the solar energy into heat. It is a great option if you want to save on your electricity bill and also contribute to the betterment of environment. If you wish to learn more about solar water heaters then you are at the right place.
Solar water heaters: are they worth buying?
Solar water heaters are definitely worth buying. From saving money to high efficiency, there are so many good reasons to replace your traditional water heaters with solar water heaters. Have a look and decide for yourself:
Saves money: Since solar water heater doesn’t need electricity or gas to heat water, it helps you save money on your monthly electricity or gas bill. Solar energy is free. You just have to invest money in installation and maintenance.
Environment friendly: It is a great way to contribute to the sustainable development by reducing energy consumption. It reduces the carbon and other harmful greenhouse gases emissions. In other words, it reduces your carbon footprint and helps to fight pollution and climate crisis.
Power-cuts aren’t an issue anymore: With a solar geyser, you needn’t be dependent on the electricity anymore. Even during long hours of power-cuts, you can get heated water anytime. It is a great option for areas that suffer long power-cuts.
Highly efficient: A solar water heater is highly efficient when it comes to heating water. It can easily convert approximately 80 percent of the solar radiations into heat energy.
A great investment with little or no maintenance: Once you have spent money on the installation, there is little or no maintenance that is needed. It is a great investment. A good solar water heater can last you more than two decades with minimal maintenance required. It is cost-effective.
Here’s a list of some of the best solar water heaters in India along with detailed reviews. You can rely on this buying guide while buying a solar water heater.
Top 5 best solar water heaters in India you can buy
If you have 4 to 5 family members and 2 – 3 bathroom connections then this is definitely one of the best solar power heaters that you can invest in. It has the tank capacity of 200 liters per day. The tank material is of premium quality and constitutes of high grade steel on the inside and galvanized power coat on the outside.
It can easily store hot water for up to 2 days due to its high quality PUF insulation. The best part about this device is that it comes with an assistant tank which takes care of overflow/pressure.
It is resistant to corrosion and can last you decades. It is designed to save at least 900 electricity units per year and is extremely easy to install. You can even transport it with great ease.
2. V1 Solar Solutions Solar Water Heater
This is an ETC solar water heater which means it uses evacuated tube collector system. If you are looking for a solar water heater that has great efficiency, then this is the ideal option since it is designed to absorb maximum heat. It is best for hilly or rainy areas.
The inner tank is made up of high-grade stainless steel. Unlike FPC solar water heaters, this device needs an assistant tank. However, the air vents are in-built.
It is easy to install and needs little to no maintenance. It is, in fact, leakage and rust proof, making it durable and strong. If you wish to save on your electricity bills, you should definitely get this efficient solar geyser.
3. GreenLife GI Solar Water Heater – 100 LPD
Greenlife is trusted for the quality of its products. This is easily one of the best solar water heaters that is highly durable. It is a great option for a family of 2 to 3 members with the tank capacity of 100 liters per day.
The tanks are epoxy coated on both inside and outside. This leads to long lasting performance. Apart from this, the solar water geyser in itself is really strong and can withstand any kind of adverse weather. The tubes are sturdy as well and are perfect for the purpose of heating water.
The best part about this device is that it comes with an in-built electric heating feature which allows you to get heated water even on non-sunny days. It is built of high-grade material and would need minimal maintenance once it is installed.
4. Saur Shakti Water Heater LPD 250 (250 Litres)
If you have a medium sized family, then this Saur Shakti Water Heater is an ideal option with the capacity of 250 liters per day. It can even be used for commercial purpose. Designed to be efficient, it uses high energy absorption vacuum tubes. It is best for chilly or adverse weather due to its high performance.
Made up of rust-proof, galvanized iron, it is best for outdoor set-up. The inner tank constitutes of glossy coat to prevent scaling. It is highly durable and well-protected against corrosion.
Once installed, it hardly requires any maintenance. This is easily one of the most efficient solar waters available in India and is a great option if you wish to save on your bills.
5. Racold Solar Domestic Alpha Pro Water Heater (200 Litres)
Available with some great unique features, this is one of the best solar water heaters you can buy in India. From Smart Float to highly efficient Vacuum Tubes, it uses some great technologies to give you the best experience ever.
The inner tank comes with corrosion resistance and is made up of high quality inox (stainless steel) which gives high durability and great anti-chloride performance. It is suitable for hard water too.
You don’t need to worry about the outer body of the tank getting spoilt as it is rustproof and coated with Zincalume. It ensures long life with its UV resistant and non-corrosive body. The unique Smart Float feature helps in eliminating the usage of air vent. This guarantees safety and low maintenance.
This Racold solar water heater is highly durable and sturdy and will easily last you several years. It is also easy to install and use.
How to select the best solar water heater for your home?
Choosing a right solar geyser can be a tedious task, considering so many models are available in the market. However, there are certain factors that you must keep in mind while choosing a solar water heater. They are:
Know the type: FPC vs ETC
There are generally two types of solar water heaters: Flat Plate Collector (FPC) and Evacuated Tube Collector (ETC).
FPCs are metallic whereas ETCs use glass tubes. The major difference lies in the efficiency of both these heaters. ETC is way more efficient when it comes to the production of heat and that is why it is the best option if you live in chilly or rainy region. There is also less heat loss in ETC.
When it comes to cost, FPC is cheaper than ETC. Due to its metallic structure, FPC is stronger than ETC and thus, lasts long. I’d personally suggest you to go for ETC solar water heater because it has great performance.
Brand plays a great role while buying a product. Always go for a certified brand that is trusted amongst the customers for its quality and after sale services. Also, a good brand also ensures great performance and will easily last you several years.
Some of the top solar water heater brands in India are:
Your geographical location is also important when it comes to selecting the right solar water heater. If you like in a sunny area that receives sufficient solar radiations then you can opt for FPC. It is inexpensive. However, if you live in a region that receives less sunlight, then you should go for ETC. Although it is expensive but it is highly effective.
Liters per day (LPD):
While buying a solar geyser, it is important that you keep your family size and number of bathroom connections in mind. Go for the tank capacity that is sufficient for your family. If you have a small family then 150 – 250 LPD would be fine for you. For a big family, 300 or more LPD is great option.
Installation and after sale service:
Find out if the company provides installation service at the place where you live. For example, some of the brands above offer installation service only in a city like Bangalore, Delhi, Gujarat, or Goa. If not, contact a local technician for installing your solar water heater.
Also, make sure you go through the user manual properly. Before making the purchase, enquire about the after sale service provided by the company along with their policies. This will save you from a lot of inconvenience later.
Going through customer reviews can help you to a great extent to get a clearer picture about what product you should go for. It also helps you understand both the pros and cons of a product and thus, make a better choice.
However, for a solar water heater you will find less reviews online because of the non availability of the products and again solar geyser is a new thing and it is not widely used among the households in India. Most people preferred the electric geysers because of the cost and lack of awareness.
While buying a solar geyser, make sure it has a good warranty period. Generally, water solar heaters come with at least 5 years warranty, although it can vary from company to company. If you want to have the best experience, be considerate about the warranty offered by the company. You can even enquire about other policies as well.
If getting a solar water heater is not feasible to you, try electric geysers – 5 Best Geysers For Hard Water In India
Climate and solar water heater efficiency: will it work at my place?
As I have already mentioned before, the climate or the geographical location does affect the output of a solar water heater. If your geographical location is close to the equator, then solar water heaters are just perfect for you. It will only increase the efficiency of the heat production. Even with a small or passive system, you will get incredible amount of heat.
However, for those who live in cold or rainy areas, installing a solar water heat needs certain measure because such regions receive less amount of sunlight. In such situation, a large or active system is best. Go for an ETC solar water heater because it is highly efficient.
Apart from this, it is also important to monitor and prevent any potential freezing risk. So if you live in a cold region, always go for “drainback” tank model. You can also go for a system that comes with automatic temperature monitor feature in order to avoid any potential risk.
Solar water heater maintenance and cost
Once you have installed the solar water heater, it is suggested to get it maintained annually for better and smooth functioning. Scheduled maintenance is a great way to ensure long life of your device.
The maintenance of solar water heater generally includes cleaning, replacing and repairing different parts. The maintenance cost depends on various factors ranging from service provider to the condition of the solar water heater.
But it would hardly cost you much. The maintenance amount is very minimal as compared to the amount that you save on your bills due to solar water heater.
FREQUENTLY ASKED QUESTIONS
Does solar water heater work in night, winter, or rainy days?
Yes, solar water heater can work in night, winter or rainy days simply because they come with a backup unit to provide you heated water even when there is no sunlight.
In other words, they come with a backup gas or electric heater which doesn’t only heat water in night, winter or rainy days but also increases the temperature of water if it is not hot enough. Although the output might be affected a bit, but the backup will definitely give you great results.
This backup proves to be extremely useful if you need to store water for a long duration. You can even store hot water during day in the well-insulated tank and use it at night.
How long does solar water heater last?
Solar water heaters are made up of high-grade durable material. They usually have a long lifespan. With proper care and maintenance, they can easily last for up to 20 years. They also come with a good warranty period for long lasting performance.
If compared to the electric water heaters whose life span is considered to be 8 – 12, solar water heaters are much more durable. That is why it is important to go for a certified brand that provides long-lasting solar water heaters.
Solar water heater vs electric geyser: which one should I buy?
Both the solar and electric water heater are used for heating water. But I would personally recommend you solar water heater simply because unlike electric geyser, it is highly cost effective. Apart from installation and minimal maintenance, you needn’t spend anything. On the other hand, an electric water heater would cost you hefty amount of bill.
A solar geyser is also more eco-friendly as it depends on the renewable energy. Although an electric geyser needs less maintenance but a solar water heater has longer life span. Also, unlike electric water heater, it is well-equipped for power-cuts as well.
Solar water heater price in India: is it expensive?
Solar water heaters come in a wide price range, depending on different factors like the brand, capacity, type, etc. In India, the price for a solar water heater normally comes between Rs. 10,000 and 1,10,000, and even more. You can find the cheapest as well as the most expensive solar water heaters in the market.
Considering this, solar water heaters are pretty affordable. You need to invest in installation and annual maintenance as well. But the savings on monthly electricity bills prove to be a payback.
To purchase a solar water heater at the best price, it is important to have a clear idea of your requirements, ranging from the type of solar water you need to the amount of capacity suitable for your family.
Solar water heater subsidy in India: Can I avail it?
According to MNRE, you can easily avail subsidy and low interest cost for your solar water heater. However, the amount and procedure is different for each state.
For general states, the subsidy is 30%, whereas for special hilly regions or northeastern states, it is 60%. It is advised that you go through the subsidy rule and procedure of your respective state.
The MNRE also provides other incentives like loans, rebate, capital subsidy etc. In order to avail subsidy, you have to go to MNRE approved solar water heater company.
Solar water geyser is one of the great investments that you can make. It won’t only help you save money but is also a great step towards a better future. With this buying guide, you will easily be able to choose the best solar water heater for your family. Just keep in mind your requirements and you are good to go.
Racold Solar Domestic Alpha Pro Water Heater is a great option if you are looking for an advanced solar water heater. All the products mentioned in the article are great and designed to serve you the best.