Three Layered Evacuated glass tubes are fixed in ETC solar water heaters which provides good insulation. High grade absorbtion material is used to coat the outer wall which enables more efficient absorbption of sunlight in rainy season which provides hot tap water in your house.
These water heaters are cost effective and cost saving in electricity point of view.
Some features of ETC solar water heaters:
1. Low Maintenance.
2. One time time investment, Life long benefits.
3. Eco friendly.
4. Saves upto 70% of electricity bill.