200L White Non-pressurized solar Water Heater

A 200L White Non-Pressurized Solar Water Heater is a solar water heating system designed for households or small businesses that prefer an eco-friendly and cost-effective way to heat water.

Key Features:

• Capacity: 200 liters (suitable for 3-5 people).
• Color: White outer casing (often UV-resistant for durability).
• Non-Pressurized System: Relies on gravity flow instead of a pressurized pump system.
• Solar Collector:
  • Vacuum Tubes: Typically made of high-efficiency borosilicate glass for better heat absorption.
  • Common Configurations: 20 to 24 tubes, depending on tube size and efficiency.
• Tank Material:
  • Inner tank: Stainless steel (for durability and hygiene).
  • Outer tank: Coated steel or stainless steel (for weather resistance).
• Insulation: High-density polyurethane foam (PUF) to maintain hot water for extended hours.
• Frame: Galvanized steel or aluminum to withstand outdoor conditions.

How It Works:

1. Water Fills the System: Cold water flows from a storage tank into the solar heater.
2. Solar Absorption: The vacuum tubes capture sunlight and transfer heat to the water inside.
3. Thermosiphon Circulation: Heated water naturally rises into the storage tank, while cooler water moves down to be heated.
4. Hot Water Availability: The stored hot water can be used anytime, even after sunset.

Advantages:

✅ Cost-Efficient – No electricity or gas required, reducing energy bills.
✅ Eco-Friendly – Uses renewable solar energy, reducing carbon footprint.
✅ Low Maintenance – No moving parts, pumps, or electrical components.
✅ Long Heat Retention – High-density insulation keeps water warm for up to 24 hours.
✅ Easy Installation – Can be mounted on rooftops or elevated stands.

Disadvantages:

❌ Gravity-Dependent – Works best when installed at a higher elevation for proper water flow.
❌ Weather Dependent – Less effective on cloudy or rainy days without a backup heating source.
❌ Space Requirement – Needs sufficient roof space for installation.