Solar Water Heater: A Guide of Questions & Answers

Do you want to shop for a solar water heater? Yes, choosing a new water heater is a significant decision for any homeowner, and for this several questions may arise in their mind. Solar hot water is a revolutionary new addition to the water heater market, and with such technology, you can receive limitless hot water, whereas it also dramatically reducing your energy bills.

Let’s have a look at this blog post that contains a brief guide of a list of Questions & Answers about solar water heaters.

Solar Water Heater

 (Image Source: 1stle.com)

Q1: What is Solar Water Heater?

A1:   A Solar Water Heater is a device operated using solar energy, which provides hot water for bathing, washing, and cleaning purposes. It is generally installed at the terrace or where an ample amount of sunlight available, and during day time it heats water, which is stored in an insulated storage tank for use when required.

Q2: How does it work?

A2:   A solar water heater is generally attached to photovoltaic panels (collect solar energy, which is used to heat the water and stored in the tank) that are located on the roof of any building. In other words, solar water heaters consist of an array of solar collectors to collect solar energy and an insulated tank to store hot water. Water in solar collectors gets heated during the day time, which is either pumped or flown automatically on thermosiphon principle to the storage tank and Hot water then stored in the tank can be used for various applications.

Q3: How do you decide about the size or capacity of the solar water heater to be installed?

A3:  100 liters per day capacity system should be sufficient for a house with one bathroom and 3 to 4 members. The capacity will increase for more numbers of bathrooms and accordingly due to pipe losses & the number of family members. Generally, the capacity is decided based on hot water required for your usage in a day. Moreover, you may want to choose a tank that is 80 gallons or larger to ensure that your solar water heater is large enough for your family.



Q4: Why should I go for a Solar Water Heater? How Much Energy Will My Solar Water Heater Save?

A4:  You can expect to notice a difference in your energy bills right away after you install a solar water heater on your property. As electricity is expensive and not available due to power cuts in many areas when required for heating water.

A solar water heater is up to 85 percent more efficient as compared to a conventional water heating unit. A 100 liter per day capacity solar water heating system is suitable for 3-4 people that can save up to 1500 units of electricity in a year, depending on hot water used. A higher capacity solar water heater will save a higher amount of electricity besides reducing the higher amount of Green House Gas (GHG) emissions.

Q5: Do I still get hot water on cloudy/rainy days?

A5:  If the cloudy days are continuing for a day or two, you still get warm water as the water gets heated due to diffused radiation available in the atmosphere. However, the solar water heating system is either connected to an electric geyser in the house or an electrical back-up provided in the storage tank of the system, which is switched on when water gets sufficiently hot. Thus, you can get hot water even on rainy days.

Q6. What are the different types of solar water heating systems?

A6.  A variety of solar heating systems are available in the market but most can be characterized in the following categories:

  • Based on collector type: ETC/FPC
  • Based on pipe and system pressure: Pressurized/Nonpressurized
  • Based on system construction material: SS/GI



Q7. How much approximate area is required for installing Solar Water Heater systems?

A7.  ETC type solar water systems per 100LPD of the installed system generally require close to 15ft2 of clean rooftop space. However, this figure can be very different for larger systems, for instance, 300LPD ETC type water heating system would require about 40-45ft2 of roof space, whereas 4000LPD system would require roughly 1500ft2.

Q8. How much does it cost to install a Solar Water Heater?

A8.  The cost of any solar water heater (varies between Rs. 15,000 to Rs. 20,000 per 100LPD of installed capacity) depends on its size and type of solar heating system installed. The cost, however, does not increase; rather it comes down proportionately as we go for a higher capacity system.

Q9. What is the time required to complete the Solar Water Heater installation?

A9.  For a site with clear roof access and ready inlet and outlet piping, the experts like SolarClue can deliver, install, and commission a solar water heating system in less than 5 days.

Q10. What is the importance of choosing a good solar water system on SolarClue brand?

A10. Solar water heating system being a long-term investment depends on the quality of workmanship, the right mix of raw materials, and system design. SolarClue being a leading online platform with a team of formally trained solar professionals, state of the art infrastructure, and adequate resources, is capable of ensuring maximum returns from your solar investments.

Contact us today for your solar water heater solutions on- 7829889111



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