Solar and renewable energy are quite popular these days. Through a lot of government support, marketing and subsidies solar products are quite popular these days in India. Many people want to adopt these technologies but are unaware of what to do and how to get it. We at HM Solar thought that helping  people understand they can adopt renewable sources at their homes could be of great help. So we start with this article on Solar Water Heater systems, providing most of the details one can have questions on.

 

What is solar water heater?

Solar water heater is a system that utilizes solar energy (or the energy from sunlight) to heat water. It has a system that is installed on a terrace or open space where it can get sunlight and the energy from the sun is then used to heat water and store it in an insulated tank. The system is not connected to electricity supply and thus does not have an on-off switch, but it uses the sunlight throughout the day to heat the water and store it in the storage tank. Water from the storage tank can then be used for any application as desired. We can get hot water totally free. It saves money, time and our valuable environment.

 

 

ETC Type Redren Solar Water Heater

Working Principle of Evacuated Tube Collector (ETC) System

Solar Water Heater (ETC System) works on a simple principle ‘Black body heat absorption principle’. The principle says, ‘black colour absorbs maximum heat, more than any other colour’. Solar water heating systems using vacuum tubes made of borosilicate glass with special coating to absorb the solar energy are called as Evacuated Tube Collector system (ETC Systems).The vacuum tube is an assembly of two concentric, borosilicate glass tubes. Air between the gap of two glass tubes is evacuated. It results in high level of vacuum which acts as the best insulation to minimize the heat loss from inner tube. The black coating on the inner tube absorbs the solar energy and transfers it to the water. The water on upper side of Vacuum Tube becomes hot and thus lighter, so it starts moving upwards in the tank. At the same time cold water, which is heavy, comes downward from the tank and is stored at the bottom. The phenomenon is called as natural Thermosyphon circulation, which occurs in every tube. Redren solar water heater is designed to perform and excel in the work water quality (Hard water) and toughest environmental conditions. Manufactured using the latest technology in our state of the art manufacturing plant and tested with our stringent quality testing facility, Redren meets your water heating needs and bestows customers with a trouble free long lasting operations.

Features Of Redren ETC Solar Water Heater:

Ultra Tough Tank

Ultra tough cylindrical tank made from finest Galvanized steel. Its Ultra heat resistance coating protects against corrosion and ensures longer life. Outer cover is 7 tank processed pure polyester powder coated made from GI which protect from UV and corrosion and ensure longer, service free life.

Ultra conductive Collectors

Ultra conductive Evacuated glass tube collectorsare coated with three layers Cu/SS/Al – N with world best magnetron sputtering ensures maximum heat absorption that delivers ample hot water even on cloudy days.

Stand

Specially designed stand made of GI using welding less technology. In house 7 tank process and Pure Polyester powder coating protect against corrosion and UV ensures longer life.

Insulation

Hot water storage tank is insulated by automatic machine injected high pressure and high density 50mm thick superior quality PUF which keeps water hot for longer time.

Available Capacities

  • 100 LPD
  • 150 LPD
  • 200 LPD
  • 250 LPD
  • 300 LPD
  • 500 LPD Compac
  • 500 LPD Manifold
  • 1000 LPD Manifold

FPC Type Redren Solar Water Heater

Redren – FPC is a Premium quality, technologically advanced solar water heater is designed to perform and excel in the work water quality (Hard water) and toughest environmental conditions. Manufactured using the latest technology in our state of the art manufacturing plant and tested with our stringent quality testing facility, Redren – FPC meets your water heating needs and bestows customers with a trouble free long lasting operations.

Ultra Tough Tank

Ultra tough cylindrical tank made from finest mild or low carbon steel. Whole tank is coated with Ultra heat resistance modified food grade coating protects against corrosion and ensures very long life. One access door inside insulation is provided to maintain the tank over period of time if requires. Outer cover is 7 tank processed Pure Polyester powder coating which is UV resistance and protect against corrosion and ensure longer, service free life.

Ultra conductive Collectors

A highly efficient selective coating maximize the heat absorption process. Toughened glass with high transmission efficiency offers durability and superior heat transfer process. Ultrasonically welded fins & tubes assembly gives optimum heat transfer. High density insulation provides superior heat retention and unique aluminum frame provide durability.

Stand

Specially designed super solid stand made of GI using welding less technology. In house 7 tank process and Pure Polyester powder coating which is UV resistance and protect against corrosion and ensures longer life.

Insulation

Hot water storage tank is insulated by automatic machine injected high pressure and high density 50mm thick superior quality PUF which keeps water hot for longer time.

Available Capacities

  • 100 LPD
  • 200 LPD
  • 300 LPD
  • 500 LPD