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Other Solar Products

Solar water heater

Hot water heated by the sun is used in many ways. While perhaps best known in a residential setting to provide hot domestic water, solar hot water also has industrial applications, e.g. to generate electricity. Designs suitable for hot climates can be much simpler and cheaper, and can be considered an appropriate technology for these places. The global solar thermal market is dominated by China, Europe, Japan and India. In order to heat water using solar energy, a collector, often fastened to a roof or a wall facing the sun, heats working fluid that is either pumped (active system) or driven by natural convection (passive system) through it.

Types of water heater

  • ETC
  • FPC

ETC- Evacuated Tube Collector

Evacuated Tube Collectors are the latest technology in Solar Water Heating. They are economical, easy to install & good for hard water conditions, as the tubes can be easily removed & cleaned.

These collectors feature parallel rows of transparent glass tubes. Each tube contains a glass outer tube and metal absorber tube attached to a fin. The fin's coating absorbs solar energy but inhibits radiative heat loss. These high-temperature collectors are used more frequently for commercial applications as their high temperatures are inappropriate for the majority of mid-temp solar water heating applications.


  • Can be used for both salt water and soft water.
  • Economical solution
  • 10 Years life time

FPC- Flat-plate collector:

Glazed flat-plate collectors are insulated, weather-proofed boxes that contain a dark absorber plate under one or more glass or plastic (polymer) covers. Unglazed flat-plate collectors - have a dark absorber plate, made of metal or polymer, without a cover or enclosure.

Flat Plate Solar Collectors is the earlier technology used in Solar Water Heating Systems; however they are still today the most efficient & reliable for Solar Water Heating Systems. Under soft water conditions they have a life of 20 years & more.. Our Flat Plate Collectors have been carrying the prestigious ISI Mark and it is working fine for the past 25 years.


  • Can be used only under soft water conditions.
  • Life time upto 25 years
  • Costly but reliable long-term solution