Seven SS Star Solar Water Heater 150L Non Pressurized - SW Series
Hot water is no longer a luxury but an essential part of modern Kenyan living”and the Seven SS Star 150L Non-Pressurized Solar Water Heater delivers reliable, eco-friendly hot water while dramatically reducing your electricity bills. This ingeniously designed system harnesses Kenya's abundant sunshine to provide consistent hot water for showers, kitchen use, and cleaning needs”even during power outages that frequently disrupt conventional electric geysers.
The non-pressurized design offers significant advantages for typical Kenyan households. It works with standard gravity-fed water systems common in homes across Nairobi, Kiambu, and rural areas”requiring no complex pumps or pressure regulation equipment. The 150-liter capacity perfectly serves families of 3-4 people, providing ample hot water for morning routines and evening showers. Its stainless steel construction ensures exceptional durability against corrosion while maintaining water purity and hygiene standards.
This solar water heater features a high-efficiency copper heat exchanger that transfers thermal energy from the solar collectors to your water with minimal loss. The vacuum tube collectors capture sunlight efficiently even during cloudy mornings or late afternoons, while the insulated storage tank keeps water hot for up to 72 hours”perfect for unpredictable weather patterns or nighttime use. What makes the Seven SS Star system particularly valuable is its dual-energy capability. An integrated electrical backup element automatically activates during extended cloudy periods, ensuring you never run out of hot water while still maximizing solar energy utilization during sunny days. This hybrid approach delivers the perfect balance of reliability and energy savings.
BuildMate enhances this premium product with our complimentary professional site assessment, where our technicians evaluate your roof structure, water pressure, usage patterns, and plumbing configuration to ensure optimal installation. Our certified installers follow strict quality protocols, and we provide comprehensive after-sales support to address any concerns. Priced at Ksh 65,000, this solar water heater typically pays for itself within 2-3 years through electricity savings”while providing decades of reliable service. Unlike electric geysers that contribute to load-shedding during peak hours, this system actually reduces national grid demand while lowering your operational costs.
Technical Specifications
| Tank Capacity | 150 Liters |
| Tank Material | Food Grade Stainless Steel 316L |
| Collector Type | High Efficiency Vacuum Tubes |
| Number of Vacuum Tubes | 15 Tubes (58mm diameter) |
| Heat Exchanger | Copper Coil Heat Exchanger |
| Insulation Material | Polyurethane Foam (50mm thickness) |
| Pressure Rating | Non-Pressurized System |
| Backup Element | 2000W Immersion Heater |
| Water Temperature | Up to 80°C in ideal conditions |
| Efficiency Rating | >75% Thermal Efficiency |
| Recommended Household Size | 3-4 People |
| Applications | Domestic Hot Water Supply, Hotels, Guest Houses |
Key Features & Benefits
- Non-Pressurized Design: Works with standard gravity-fed water systems
- 150L Capacity: Perfect for 3-4 person households
- Stainless Steel Tank: Food-grade 316L stainless steel for durability
- Vacuum Tube Collectors: High-efficiency tubes capture maximum solar energy
- Copper Heat Exchanger: Superior heat transfer efficiency
- 50mm Insulation: Keeps water hot for up to 72 hours
- Integrated Backup Element: 2000W heater for cloudy days
- Corrosion Resistant: Built to withstand harsh weather conditions
- Energy Efficient: Reduces electricity bills by up to 70%
- Environmentally Friendly: Uses renewable solar energy
- Low Maintenance: Minimal moving parts for reliability
- KEBS Certified: Meets Kenyan safety and quality standards
- Free Site Assessment: Professional evaluation before installation
- Expert Installation: Certified technicians for proper setup
- After-Sales Support: Comprehensive warranty and service
Installation Guidelines
- Site Assessment: Professional evaluation of roof structure and sun exposure
- Optimal Positioning: South-facing installation for maximum solar gain
- Roof Preparation: Ensure structural integrity can support system weight
- Mounting Brackets: Secure installation with weather-resistant brackets
- Piping Connections: Proper connection to cold water inlet and hot water outlet
- Overflow Pipe: Install overflow pipe to drain excess water safely
- Insulation: Insulate all connecting pipes to minimize heat loss
- Backup Connection: Connect electrical backup to dedicated circuit
- Pressure Relief: Install pressure relief valve for safety
- System Testing: Fill system and check for leaks before activation
Compatibility Notes
- Water Pressure: Compatible with gravity-fed water systems (0.5-2 bar)
- Plumbing Systems: Works with standard 15mm/20mm copper or plastic pipes
- Roof Types: Suitable for tile, metal sheet, and concrete roofs
- Climate Zones: Designed for tropical and subtropical climates
- Electrical Systems: Requires 240V AC connection for backup heating
- Water Quality: Compatible with hard and soft water (water softener recommended for hard water)
- Building Codes: Compliant with Kenyan building regulations
- Grid Connection: Backup element activates during low solar conditions
- Expansion Tanks: May require expansion tank for closed systems
- Antifreeze: Not required for tropical climates