The solar water heating system integrates several key components to ensure reliability, efficiency, and safety. The backup heating element provides auxiliary heating during low solar availability, while the U-tube heat exchanger efficiently transfers thermal energy to the stored water. A servicing manhole allows easy access for maintenance, and the magnesium anode protects the tank from internal corrosion. Safety is enhanced by the temperature and pressure relief valve and the air vent valve, which prevent system stress and air blockage. The expansion vessel absorbs pressure changes, while the circulation pump ensures consistent fluid movement. The solar sensor monitors temperature variations, and the isolating valve allows for controlled maintenance operations.
