Solar water heating systems

Ensure hot water for all seasons with a broad range of solar water heaters from Energy Devices. These wide array of water heaters help cut down your electricity bills and are suitable for a broad range of applications – from homes, hotels to commercial applications.

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Energy Devices is in the field of solar water heating systems for over 20 years now being associated with the best in the industry, namely, Solchrome, BHEL and Tata Power Solar.

Solar thermal systems use sunlight to heat water – For domestic use, commercial use, swimming pools and more.

A typical direct solar thermal system consists of a tank, a collector and connecting pipes.

A typical 100LPD ( Litres per day ) system is sufficient to provide approximately 100 litres of hot water at an average temperature of 65 degrees celsius on all sunny days.

This helps to save approximately 4 units of energy each day offering good cost benefits.

Rathi Solar water heaters are available in scalable multiples of 100. Large scale installations for special applications involving heat transfer can also be engineered.

  1. When the sun’s rays fall on a solar water heater collector, made of either an Evacuated Vacuum Tube system (EVT) or Flat Plate Collector system (FPC), the solar radiation heats up the water present in glass tubes (in EVT) / metal tubes (in FPC) due to high transmittance of the covering glass medium.
  2. The heated water, now less dense, rises in the various tubes eventually reaching the tank at the top.
  3. The relatively colder and denser water in the tank descends into the tubes, in turn getting heated — this cycle continues. The Thermosiphon effect ensures the movement of hot water upwards into the tank because of difference in density, eliminating the need for an external pump. The insulated tank ensures that the hot water remains hot for a long time.

A Residence can save  70-80% on electric or fuel bills by replacing their conventional water heaters with solar water heating systems.