ETC (Evacuated Tube Collectors)
They are made of double layer borosilicate glass tubes evacuated for providing insulation. The outer wall of the inner tube is coated with selective absorbing material. Absorption of solar radiation is done by the inner tube and transfers the heat to the water which flows through the inner tube.
✔ The ETC system makes it easier to get temperature in hard water.
✔ There is clogging and choking in this system, there is a continuous free flow of hot water.
✔ It is a cheap and reliable system, which once installed removes the worry of frequent maintenance.
✔ This system helps in providing heavy savings on the conventional heating bills.
✔ This system provides higher water temperature at an average of 50 to 60 degrees at any time at almost zero recurring expense.
✔ Solar Water heaters are an one-time investment that tend to provide clients with long term benefits. These systems are working on a renewable
✔ source which has a never ending capability and most of all is FREE that is sunlight. It is a clean producing system which is easy to install and safe to use. This is a system with an ever rising popularity due its massive advantages over combustion based system and will soon become the primary way of heating water.