350L White Tank Non-pressurized solar Water Heater

A 350L White Tank Non-Pressurized Solar Water Heater is a high-capacity, energy-efficient system designed to provide hot water using solar energy. It is ideal for large households (8-10 people), hotels, hostels, or small businesses that need a cost-effective and eco-friendly hot water solution.

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Key Features:

1. Tank Specifications:

• Capacity: 350 liters (suitable for 8-10 people).
• Inner Tank Material: Food-grade stainless steel (SUS304 or SUS316) for hygiene and corrosion resistance.
• Outer Tank Material: White-coated steel or stainless steel for weather resistance and durability.
• Insulation: 50-60mm thick polyurethane foam (PUF) for heat retention up to 24+ hours.

2. Solar Collector System:

• Vacuum Tubes: High-efficiency borosilicate glass tubes for maximum solar heat absorption.
• Tube Count: Typically 35-40 tubes (depending on the model).
• Tube Diameter: 58mm for better heat absorption.
• Operation: Natural thermosiphon circulation (hot water rises, cold water sinks).

3. Frame and Structure:

• Frame Material: Galvanized steel or aluminum for stability and longevity.
• Installation Type: Designed for rooftop or elevated installation to maximize sunlight exposure.

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How It Works:

1. Water Supply: Cold water enters the system from an overhead storage tank.
2. Solar Absorption: Vacuum tubes absorb sunlight and transfer heat to the water inside.
3. Natural Circulation: Heated water rises into the insulated storage tank, while cooler water moves down to be heated.
4. Hot Water Availability: The insulated storage tank keeps water warm for day and night use.

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Advantages:

✅ Large Capacity – Provides sufficient hot water for 8-10 people.
✅ Energy Efficient – Uses solar power, significantly reducing electricity or gas costs.
✅ Eco-Friendly – Zero carbon emissions, making it a green alternative.
✅ Low Maintenance – No pumps, moving parts, or electrical components.
✅ Excellent Heat Retention – Thick PUF insulation keeps water hot for up to 24+ hours.
✅ Simple Installation – Can be mounted on rooftops or elevated stands.

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Disadvantages:

❌ Gravity-Dependent – Requires an elevated installation for proper water flow.
❌ Weather Dependent – Performance decreases on cloudy or rainy days (may need backup heating).
❌ Requires Adequate Roof Space – Due to its large size, installation needs sufficient space and structural support.
❌ Higher Initial Cost – Upfront investment is higher compared to traditional water heaters.

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Who Should Buy This?

• Large families (8-10 people) requiring a reliable hot water supply.
• Hotels, lodges, hostels, or small businesses looking for a cost-effective and sustainable water heating solution.
• Eco-conscious homeowners aiming to reduce energy bills and their carbon footprint.
• Locations with strong sunlight exposure for maximum efficiency.