Overview
A solar water heater (SWH) is an eco-friendly system that uses sunlight to heat water for residential, commercial, or industrial use. It is a cost-effective and energy-efficient alternative to conventional water heating methods, reducing electricity bills and carbon footprints.
Types of Solar Water Heaters:
Flat Plate Collectors (FPC):
Consist of a metallic box with a transparent glass cover. Ideal for moderate climates and long-lasting with minimal maintenance. Suitable for residential and small-scale applications.
Evacuated Tube Collectors (ETC):
Comprise rows of glass tubes with vacuum insulation. Highly efficient, even in colder climates or low sunlight conditions. Commonly used in both residential and commercial setups.
Integral Collector Storage (ICS):
Combines water storage and heating in one unit. Simple and cost-effective, best for mild climates.


Benefits of Solar Water Heaters
- Energy Savings: Reduces dependency on electricity or gas.
- Eco-Friendly: Uses renewable energy, reducing greenhouse gas emissions.
- Low Maintenance: Simple design with long service life.
- Cost-Effective: High initial investment but significant savings over time.
- Versatile: Available in various sizes to meet specific water heating needs

Advantages
- Domestic water heating (bathrooms, kitchens, etc.).
- Hotels and resorts.
- Industrial applications (dairy, food processing, etc.).
- Hospitals and educational institutions