TSun Solar Water Heater — Robust, High-Capacity Solar Heating for Homes & Businesses
The TSun Solar Water Heater, offered by Multi Power Solution, is a high-capacity and highly durable solar heating system built to deliver reliable, energy-efficient hot water for residential and commercial needs. It’s designed with top-tier materials and thoughtful engineering to perform excellently across Nepal’s climate—whether in the blistering sun, monsoon rains, or chilly winters.
Key Specifications
- Inner Tank: Made of food-grade SUS 304-2B stainless steel, 0.6 mm thick — this guarantees hygiene, corrosion resistance, and longevity.
- Insulation: 55 mm polyurethane foam to minimize heat loss, maintaining water temperature for extended periods, even overnight or during cold weather.
- Tank Stand: Built from 1.5 mm thick stainless steel, and comes with a stainless-steel reflector, ensuring structural strength and heat reflection.
- Vacuum Tubes: Uses 58 × 1800 mm double-walled borosilicate glass vacuum tubes. The inner tubes are copper-coated to maximize solar energy absorption.
- Safety Feature: Includes a 40 mm safety valve for pressure protection.
- Piping: 32 mm inlet and outlet, plus a 25 mm double air vent for efficient circulation.
- Optional Electric Backup: Offers an electric [heating rod / coil] option to ensure hot water even during overcast days.
- Available Capacities: You can choose from large storage options — 250 L, 300 L, or 400 L — making it ideal for different household sizes or commercial requirements.
Why the TSun Solar Water Heater Is a Smart Choice
1. Massive Capacity, Ideal for High Demand
With its large tank sizes (250–400 liters), the TSun model is perfect for families with multiple bathrooms, guesthouses, hotels, or any facility with significant hot water needs. The high capacity means you can rely on solar-heated water even during peak demand times.
2. Superior Heat Retention
Thanks to 55 mm of polyurethane foam insulation, the tank retains heat very efficiently. This means even when the sun isn’t at its strongest (such as early morning, late evening, or in winter), the stored water stays warm for longer, reducing the need for frequent reheating.
3. Food-Grade Stainless Steel Tank
Using SUS 304-2B stainless steel for the inner tank ensures both durability and hygiene. This food-grade material resists rust and contamination, making TSun safe for household use.
4. High-Performance Vacuum Tubes
The vacuum tubes are double-walled borosilicate glass, which provides excellent insulation, and the copper-coated absorber further boosts the system’s ability to gather solar energy. This ensures efficient heating even in less-than-ideal sunlight.
5. Built for Safety
A 40 mm safety valve helps to relieve pressure, protecting the system and ensuring user safety. The design also includes air vents and robust piping for stable operation.
6. Structural Durability
The stand and reflector are made of sturdy stainless steel, designed to resist weather extremes, support the heavy tank load, and contribute to better heat absorption.
7. Flexible Power Backup
The electric backup option is a smart addition: on cloudy days, or during prolonged poor weather, the heater can still deliver hot water by switching to electric mode, giving you reliable year-round performance.
Advantages of Installing TSun Solar Water Heater in Nepal
- Savings on Energy Bills: By using solar energy as the primary heat source, you can drastically cut down on electricity or LPG used for water heating. Over time, the cost savings often pay back the investment. (This is a core benefit of solar water heaters in Nepal.)
- Sustainability: Switching to solar reduces your carbon footprint, helping you contribute to cleaner energy practices in Nepal.
- Low Maintenance: The use of stainless steel and high-quality vacuum tubes means less wear and tear. Maintenance is relatively minimal — periodic cleaning, valve checks, and structural inspections are typically sufficient.
- Longevity: With proper care, the TSun system can last many years, because of its robust materials and construction.
- Local Suitability: Multi Power Solution, being based in Nepal, understands local conditions (sunlight, installation challenges, roof types, etc.) and provides tailored installation and service.
Ideal Use Cases for the TSun Solar Water Heater
- Large Families — If you have many members using hot water daily (showers, washing), TSun’s high capacity ensures there’s enough hot water stored.
- Hotels, Guesthouses & B&Bs — Commercial establishments with frequent demand will benefit from its large tank and efficient heating.
- Institutions & Offices — Schools, hostels, or office buildings where many people may use hot water at different times.
- Restaurants / Cafeterias — For cleaning, kitchen operations, and general hot water usage without relying on electricity.
Installation & Maintenance Guidance
- Professional Setup: Hire a certified installer from Multi Power Solution (or an experienced local technician) to ensure correct roof mounting, tube alignment, and safe plumbing.
- Orientation and Tilt: For maximum solar gain, position the vacuum tubes where they receive the most sunlight (usually a south-facing roof works best). The tilt angle should be optimized for your latitude and roof slope.
- Inspect Regularly: Once or twice a year, check the vacuum tubes for dust, dirt, or damage. Clean them gently, if needed.
- Valve and Vent Checks: Ensure the safety valve and air vents are working properly. A malfunction here can reduce performance or pose risk.
- Flush the Tank: Over time, sediments may build up in the tank. Flushing helps maintain efficiency and prolongs tank life.
- Electric Backup Use: If your system has the electric backup option, use it when needed, but rely primarily on solar heating to maximize energy savings.
Frequently Asked Questions (FAQ)
Q1: Will the TSun heater work in cold or overcast weather?
Yes. The vacuum tubes are efficient at capturing solar energy even in less intense sunlight. Plus, the thick insulation (55 mm) helps retain heat. If you also choose the electric backup, you can ensure a consistent supply of hot water even during prolonged cloudy periods.
Q2: How much hot water can I store?
You can choose among 250 L, 300 L, or 400 L options. Your choice should depend on your household size and hot-water demand.
Q3: How safe is the system?
Very safe. The system has a 40 mm safety valve to relieve excessive pressure, and its structural design is robust with stainless-steel components.
Q4: How long does the system last?
With its high-quality stainless steel inner tank and durable vacuum tubes, the TSun system is built for longevity. With proper installation and maintenance, it should serve reliably for many years.
Q5: Is the water from the TSun safe for bathing and cooking?
Yes. The inner tank is made of food-grade SUS 304 stainless steel, which is safe for potable hot water.
Why Buy from Multi Power Solution
- Local Expertise: Multi Power Solution has a deep understanding of Nepal’s solar potential, weather, and building styles.
- Wide Range of Products: They offer not just the TSun model, but also other solar water heaters (True Sun, etc.) to fit different use cases.
- After-Sales Support: Being local, they provide installation, maintenance, and spare parts support — making long-term ownership easier.
- Trusted Quality: Their product specifications, such as using 304 stainless steel, thick insulation, and strong structural elements, reflect a commitment to quality.
Conclusion
The TSun Solar Water Heater from Multi Power Solution is not just a water heater — it’s a long-term investment in energy savings, sustainability, and reliable performance. With its high-capacity tank, excellent insulation, and premium build materials, it’s ideally suited for families, hotels, and businesses that demand a steady, high volume of hot water. Add in the optional electric backup, and you have a system that works in any weather.
If you’re interested in reducing your electricity or LPG bills, improving your environmental footprint, and installing a system that will serve you well for years, the TSun Solar Water Heater is a compelling choice.







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