UltraSun Premium 300L Indirect Solar Hot Water System

The UltraSun Premium 300L Indirect Solar Hot Water System is a durable, closed-loop thermosyphon solution designed for Kenya’s toughest water conditions, including brackish or mineralized borehole water. Its glazed enamel-lined stainless steel tank with a magnesium anode resists corrosion, while flat-plate copper collectors achieve 95% solar absorption. The system includes a 2kW electric backup, 8-bar pressure valves, and galvanized framing for all-weather reliability. Ideal for coastal or high-mineral areas, it avoids scale buildup in collectors and comes with a 5-year warranty. Professionally installed by Riisun Solar Experts nationwide, it’s perfect for homes, hotels, or businesses needing a low-maintenance, long-lasting hot water solution with backup heating.

Description

UltraSun Premium 300L Indirect Solar Hot Water System – Supply & Installation in Kenya.

The UltraSun Premium 300L Indirect Solar Hot Water System is a high-performance, closed-loop thermosyphon unit built for long-lasting operation—even under tough conditions. Its design separates the collector circuit (solar loop) from the process (tap) water, making it ideal for mineralized, brackish, or hard water often found in boreholes or coastal areas.


Key Features:

  • Closed-loop stainless steel tank, glazed enamel-lined, with magnesium sacrificial anode for superior corrosion protection.

  • 2 kW electric heating element with thermostat for backup heating.

  • Flat‑plate collectors featuring full-area copper absorber plates welded to copper tubes, tempered glass, and high-grade insulation—rated up to 95% solar energy absorption.

  • Flexible stainless steel circulation piping, Polystyrene-insulated with foil, and pressure release valves rated at 8 bar (dual 3 bar).

  • Galvanised mounting frame suitable for flat or inclined roofs, certified for durability in all weather.

  • Comes with a 5‑year guarantee on materials and craftsmanship.


Why This System Stands Out:

  • Ideal for harsh water. The closed-loop system avoids scale and corrosion common in open-loop models when using brackish or mineralized water.

  • Durable materials. Reinforced glass enamel lining and sacrificial anode ensure the tank lasts in alkaline or coastal regions.

  • Backup heating. The electric element ensures reliability even on cloudy days.

  • Easy maintenance. Flexible stainless piping allows for hassle-free servicing, while pressure valves keep the system safe.

  • Five-year warranty. Offers strong peace of mind and long-term protection.


Recommended Best Practices (Kenyan Context):

  • Water quality first. Closed-loop systems are essential for borehole or mineralized water to prevent quick collector degradation.

  • Insulate additional pipes and tank. Reduces heat loss and improves cold-start efficiency.

  • Periodic anode check. Replace the sacrificial anode every 2–3 years in areas with aggressive water chemistry.

  • Sensor and wiring routing. Place sensor wiring carefully and consider professional encasing to avoid degradation or failure.

  • Install steel mesh guard for collectors. Prevents damage from debris or falling objects, enhancing system longevity.

  • Regular flushing. In areas with very hard water, schedule a tank flush every 12 months to minimize scale buildup.


Package Includes:

  • 1 × 300 L UltraSun closed-loop enamel-lined tank with thermostat

  • 2 kW electric backup element

  • Flat‑plate collectors (copper full‑area plated)

  • Insulated stainless steel circulation piping

  • Non‑return and dual pressure-release valves

  • Drain-cock and full connection fittings

  • Galvanised mounting frame

  • User manual & full warranty documentation


Professional Supply & Installation in Kenya

Riisun Solar Energy Experts offer trusted installation across Nairobi, Mombasa, Eldoret, Kisumu, Meru, Nanyuki, Machakos, Kiambu, and more. Each installation includes roof mounting, safe plumbing, sensor wiring, system commissioning, and performance testing.


Related Models:

  • UltraSun Premium 150L & 200L Indirect Systems. Designed for 3–5 people using the same technology.

  • Direct 300L & VacRod models. Suitable for homes with low mineral content water.