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How to Clean a Solar Water Heater?

Published in Solar Water Heaters 2 mins read

To keep your solar water heater operating efficiently, clean it about once a month to remove dust and dirt accumulation that blocks sunlight from reaching the tubes.

The primary cleaning task involves removing any buildup of dust, dirt, or debris from the surface of the solar collector panels. This ensures maximum sunlight absorption and efficient water heating.

Here's how to clean a solar water heater effectively:

  1. Frequency: Aim to clean your solar water heater about once a month, or more frequently if you live in a dusty or polluted environment.
  2. Safety First: Before starting, ensure the system is not actively heating. The best time is early morning or late evening.
  3. Materials Needed:
    • Soft brush or sponge
    • Water (a hose is helpful)
    • Mild soap (optional, use only if necessary)
  4. Cleaning Process:
    • Rinse: Begin by rinsing the solar collector panels with water to remove loose dirt and debris.
    • Wash (If Needed): If there's stubborn dirt, use a soft brush or sponge with a mild soap solution. Avoid abrasive cleaners, as they can damage the panels.
    • Rinse Again: Thoroughly rinse the panels with water to remove all soap residue.
  5. Inspection: While cleaning, inspect the system for any signs of damage, such as cracks in the panels or leaks in the plumbing. Address any issues promptly.

By following these steps, you can maintain your solar water heater and ensure its longevity and optimal performance. Regular cleaning helps the sunlight fall directly on the tubes.

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