Description

AQUASUN 300L Non-Pressurized Solar Water Heater: Efficient & Affordable Energy

Embrace a sustainable lifestyle and eliminate high electricity bills with the AQUASUN 300L Non-Pressurized Solar Water Heater. Designed for households that prioritize simplicity, reliability, and cost-effectiveness, this 300-liter system uses natural convection to provide a massive supply of hot water. It is the ideal choice for single-story homes, rural residences, and areas with gravity-fed water systems.

By utilizing high-performance vacuum tube technology, the AQUASUN non-pressurized series can reduce your water heating expenses by up to 75%. Because it relies on the natural thermosiphon principle (hot water rising naturally), it operates without the need for complex pumps or high-pressure components, making it one of the most durable and low-maintenance solar solutions on the market.

The Advantage of Non-Pressurized (Gravity) Systems

The AQUASUN Non-Pressurized System is a “passive” solar solution, offering unique benefits:

• Cost-Effective Investment: Significantly more affordable than pressurized models, offering a faster return on investment (ROI).

• Simplicity & Longevity: With no internal pressure stressing the tank and no moving parts like pumps, these systems often have a longer operational lifespan.

• Electricity Independence: Works entirely on solar energy and gravity; even during a total power outage, your hot water supply remains uninterrupted.

• Low Maintenance: The straightforward design means fewer fittings that could leak or fail over time.

Technical Specifications & Performance

Product Highlights

1. High-Performance Vacuum Tubes

The system features 30 evacuated borosilicate glass tubes that act as high-efficiency solar collectors. These tubes are designed to absorb over 93% of available solar radiation. The vacuum between the glass layers acts as a near-perfect insulator, ensuring that water is heated rapidly during the day and stays hot even when external temperatures drop at night.

2. Superior Thermal Insulation

The storage tank is wrapped in a thick layer of high-density polyurethane foaming. This industrial-grade insulation ensures that the water heated during the day remains at a usable temperature for up to three days, providing you with hot water even after a cloudy day.

3. Hygienic Stainless Steel Inner Tank

The inner tank is constructed from food-grade SUS 304-2B stainless steel. This ensures that your water remains clean, hygienic, and free from rust. The argon-arc welding used during manufacturing guarantees a watertight seal and extreme durability against the scaling effects of mineralized water.

4. “Thermosiphon” Natural Circulation

The AQUASUN 300L works on the principle of natural convection. As water in the vacuum tubes is heated by the sun, it becomes lighter and rises into the tank, while cooler, denser water flows down into the tubes to be heated. This continuous cycle ensures the entire 300L tank is heated thoroughly without requiring a single watt of electricity.

5. Reliable Backup for Rainy Seasons

While the solar tubes are highly effective even in overcast conditions, the system includes a port for an optional electric backup heater. This allows you to boost the water temperature during rare periods of prolonged heavy rain, ensuring your family’s comfort 365 days a year.

Primary Applications

• Residential Homes: Ideal for bungalows or homes where the water storage tank is located at a higher elevation than the showers.

• Rural & Off-Grid Locations: The perfect solution for areas where electricity is expensive or unavailable.

• Schools & Staff Quarters: Providing a high-volume, low-cost hot water supply for institutions.

• Agricultural Farms: Useful for dairy farms or workshops requiring hot water for cleaning and sanitation.