Royal Sun Solar Water Heater 20Tube 250L Premium Mat
Royal Sun Solar Water Heater 250 L Premium Mat – 20 Tube (2025 Model)
Brand: Royal Sun
Capacity: 250 Liters
Finish: Premium Mat
Color: Silver Mat
Delivery: Free inside Kathmandu Valley
Product Overview
The Royal Sun Solar Water Heater 250 L Premium Mat (2025 Model) combines elegant design with powerful solar technology to deliver consistent hot-water performance for large households, hotels, and institutions. Equipped with 20 high-efficiency vacuum tubes and an electric backup heating rod, it ensures a steady supply of hot water even during cloudy weather.
Its Premium Mat stainless-steel finish not only enhances aesthetics but also provides superior resistance to corrosion, ensuring durability and long life in all weather conditions.
Technical Specifications
Capacity: 250 Liters
Vacuum Tubes: 20 high-efficiency glass tubes
Tube Length: ≈ 1899 mm
Outer Tube Diameter: 58 mm | Inner Tube Diameter: 47 mm
Glass Thickness: 1.6 mm | Absorptivity: ≥ 93 %
Coating: AL-N-AL selective coating for maximum heat capture
Inner Tank: SUS 304-2B stainless steel (0.6 mm)
Outer Tank: Premium Mat stainless steel (0.4 mm)
Frame: Stainless steel 1.2–1.5 mm thick
Insulation: 50 mm high-density polyurethane foam
Backup: Integrated electric heating rod
Key Features & Benefits
Premium Mat Design: Modern matte-silver finish adds style and extra durability.
High Performance: 20 vacuum tubes with 93 % absorptivity ensure rapid water heating.
Full SS Construction: Both inner and outer tanks are stainless steel for corrosion-free operation.
Energy Efficient: Uses free solar energy to reduce electricity and gas bills.
Electric Backup: Ensures hot water in all weather conditions.
Superior Insulation: 50 mm PU foam retains heat longer, even in winter.
Large Capacity: Ideal for families or commercial use (up to 6–8 people).
Eco-Friendly: Zero-emission water heating system supporting sustainable living.
Free Delivery & Installation: Provided within Kathmandu Valley for hassle-free setup.
Warranty & Service
Total Warranty: 10 Years
– 5 Years Full Replacement
– 5 Years Service Support
Backed by Solar Filter Nepal with reliable after-sales service and technical assistance.
Safety & Maintenance Tips
Install out of reach of children.
Avoid pouring cold water into empty or sun-heated tubes.
Test water temperature before bathing (can exceed 50 °C).
Clean tubes and check fittings regularly for best performance.
Why Choose Royal Sun Premium Mat (250 L 2025 Model)
This premium model blends style, strength, and sustainability. With 20 high-absorption tubes, elegant stainless finish, and 10-year warranty, the Royal Sun 250 L Premium Mat Solar Water Heater is one of Nepal’s most reliable choices for large-capacity hot-water systems — perfect for modern homes, hotels, and institutions.